README: clean up old version history entries

Be consistent with list marker and remove any irrelevant
leading bit from all version history entries that do not
match the original version history entry style.

Signed-off-by: Kyle J. McKay <mackyle@gmail.com>

README

@@ -184,221 +184,221 @@ Version History
 
 1.1.14 (14 Jun 2021):
 
-* Markdown.pl: do not start sublist in list marker line
++ do not start sublist in list marker line
 
 
 1.1.13 (13 Jun 2021):
 
-* Markdown.pl: adjust strip-comments options and defaults
++ adjust strip-comments options and defaults
 
-* Markdown: allow backticks-delimited code blocks in lists
++ allow backticks-delimited code blocks in lists
 
-* Markdown: support `\` EOL to generate a `<br />`
++ support `\` EOL to generate a `<br />`
 
-* Markdown.pl: do not mistake table for code block
++ do not mistake table for code block
 
 
 1.1.12 (17 Mar 2021):
 
-* allow some overlooked table attributes
++ allow some overlooked table attributes
 
-* do not choke on \n inside attribute values
++ do not choke on \n inside attribute values
 
-* better sanitization of href and src attributes
++ better sanitization of href and src attributes
 
-* add more comment stripping options
++ add more comment stripping options
 
-* clean up closing tag whitespace
++ clean up closing tag whitespace
 
-* do not choke on `<br></br>` etc.
++ do not choke on `<br></br>` etc.
 
-* add limited tilde-delimited code block support
++ add limited tilde-delimited code block support
 
-* allow target="_blank" rel="nofollow"
++ allow target="_blank" rel="nofollow"
 
-* add missing space to implied attributes
++ add missing space to implied attributes
 
 
 1.1.11 (05 Mar 2021):
 
-* new --strip-comments option
++ new --strip-comments option
 
-* new --keep-abs option
++ new --keep-abs option
 
-* new --raw-xml and --raw-html options
++ new --raw-xml and --raw-html options
 
-* new --auto-number option for headers
++ new --auto-number option for headers
 
-* new --div option to wrap output in `<div>...</div>`
++ new --div option to wrap output in `<div>...</div>`
 
-* convert named character entities to numeric by default
++ convert named character entities to numeric by default
 
-* add XML comments section to syntax.md
++ add XML comments section to syntax.md
 
-* detail API and ability to "use" Markdown module
++ detail API and ability to "use" Markdown module
 
-* support floating images and `<br clear=all>`
++ support floating images and `<br clear=all>`
 
-* recognize wiki style image links
++ recognize wiki style image links
 
-* YAML front matter support
++ YAML front matter support
 
-* make -i/-r work on top-level raw html blocks
++ make -i/-r work on top-level raw html blocks
 
-* avoid accidentally creating nested `<a>` elements
++ avoid accidentally creating nested `<a>` elements
 
-* ignore junk on end of backticks-delimited code block start line
++ ignore junk on end of backticks-delimited code block start line
 
-* strip markup out of implicit anchors
++ strip markup out of implicit anchors
 
 
 1.1.10 (08 Jul 2020):
 
-* enhance --wiki "s" option operation
++ enhance --wiki "s" option operation
 
-* support new --absroot=prefix option
++ support new --absroot=prefix option
 
-* document ability to split link references
++ document ability to split link references
 
-* hook up fragment only link definitions
++ hook up fragment only link definitions
 
-* remove markup from <title> value
++ remove markup from <title> value
 
-* update links to https where possible
++ update links to https where possible
 
 
 1.1.9 (15 Dec 2019):
 
-* improve bare fragment URL link handling and add fragment `--base` option
++ improve bare fragment URL link handling and add fragment `--base` option
 
-* match block tags case-insensitively and relax `<hr>` matching rules
++ match block tags case-insensitively and relax `<hr>` matching rules
 
 
 1.1.8 (22 Nov 2019):
 
-* correct a number of issues with improperly nested markup involving
++ correct a number of issues with improperly nested markup involving
   links, blockquotes, strong and emphasis etc.
 
-* parse nested `[`...`]` and `(`...`)` properly when inside links
++ parse nested `[`...`]` and `(`...`)` properly when inside links
 
-* avoid getting confused by nested lists
++ avoid getting confused by nested lists
 
-* allow first blockquote line to be empty
++ allow first blockquote line to be empty
 
-* as-documented single-quote titles in link definitions now work
++ as-documented single-quote titles in link definitions now work
 
-* when escaping a single-quote use `&#39;` instead of `&apos;`
++ when escaping a single-quote use `&#39;` instead of `&apos;`
 
-* ignore control characters in input (other than whitespace)
++ ignore control characters in input (other than whitespace)
 
-* wiki links can be processed by providing a new `--wiki` option
++ wiki links can be processed by providing a new `--wiki` option
 
-* an empty table header row is omitted from the output
++ an empty table header row is omitted from the output
 
-* table rows can be joined with a trailing `\` (see syntax.md)
++ table rows can be joined with a trailing `\` (see syntax.md)
 
-* add several new XML validation options
++ add several new XML validation options
 
-* perform XML validation and tag sanitation by default (see help)
++ perform XML validation and tag sanitation by default (see help)
 
-* tab expansion in shifted backticks-delimited code blocks has
++ tab expansion in shifted backticks-delimited code blocks has
   been adjusted to better match expected behavior
 
-* all atx-style header levels now get anchors not just levels 1-3
++ all atx-style header levels now get anchors not just levels 1-3
 
-* internal document "fragment" links `[...](#section)` hook up to
++ internal document "fragment" links `[...](#section)` hook up to
   the target section much more reliably now
 
-* backticks-delimited code blocks can now specify a syntax language
++ backticks-delimited code blocks can now specify a syntax language
   name that ends with a `#` character
 
-* more lists that were not being recognized before because they did
++ more lists that were not being recognized before because they did
   not have a preceding blank line are now recognized
 
 
 1.1.7 (14 Feb 2018):
 
-* Markdown.pl: _PrefixURL more intelligently
++ _PrefixURL more intelligently
 
 
 1.1.6 (03 Jan 2018):
 
-* Markdown.pl: be more flexible parsing backticks-delimited code blocks
++ be more flexible parsing backticks-delimited code blocks
 
-* Markdown.pl: improve XML comment parsing
++ improve XML comment parsing
 
-* Markdown.pl: correct .svg extension matching rule
++ correct .svg extension matching rule
 
-* Markdown.pl: apply -i and -r options to a and img tags
++ apply -i and -r options to a and img tags
 
 
 1.1.5 (07 Dec 2017):
 
-* Markdown.pl: support tables
++ support tables
 
-* Markdown.pl: make sure all alt= and title= text is escaped
++ make sure all alt= and title= text is escaped
 
 
 1.1.4 (24 Jun 2017):
 
-+ Markdown.pl: disallow <dir> and <menu> without --deprecated
++ disallow <dir> and <menu> without --deprecated
 
 
 1.1.3 (13 Feb 2017):
 
-+ Markdown.pl: auto escape '<' of non-tags
++ auto escape '<' of non-tags
 
-+ Markdown.pl: do not overlook sibling list items
++ do not overlook sibling list items
 
 
 1.1.2 (19 Jan 2017):
 
-+ Markdown.pl: usually (i), (v) and (x) are roman
++ usually (i), (v) and (x) are roman
 
-+ Markdown.pl: retain square brackets around footnotes
++ retain square brackets around footnotes
 
-+ Markdown.pl: treat '*' in `<ol>` like last marker
++ treat '*' in `<ol>` like last marker
 
-+ Markdown.pl: normalize link white space
++ normalize link white space
 
-+ Markdown.pl: do not mishandle double list markers redux
++ do not mishandle double list markers redux
 
-+ Markdown.pl: recognize two ```-delimited blocks in a row
++ recognize two ```-delimited blocks in a row
 
-+ Markdown: allow trailing '[]' to be omitted
++ allow trailing '[]' to be omitted
 
-+ Markdown.pl: tweak code block output again
++ tweak code block output again
 
 
 1.1.1 (12 Jan 2017):
 
-+ Markdown.pl: support lower-greek ol lists
++ support lower-greek ol lists
 
-+ Markdown.pl: auto-detect latin-1/utf-8 input always output utf-8  
++ auto-detect latin-1/utf-8 input always output utf-8  
   The minimum version of Perl required is now 5.8.0.
 
 
 1.1.0 (11 Jan 2017):
 
-+ Markdown.pl: handle some limited [[wiki style links]]
++ handle some limited [[wiki style links]]
 
-+ Markdown.pl: add --stub, --stylesheet and --tabwidth options
++ add --stub, --stylesheet and --tabwidth options
 
-+ Markdown.pl: support more list markers
++ support more list markers
 
-+ Markdown.pl: format fancy checkboxes
++ format fancy checkboxes
 
-+ Markdown.pl: add anchors and definitions for headers
++ add anchors and definitions for headers
 
-+ Markdown.pl: do not mishandle double list markers
++ do not mishandle double list markers
 
-+ Markdown.pl: handle non-backticks-delimited code blocks properly
++ handle non-backticks-delimited code blocks properly
 
-+ Markdown.pl: recognize top-level lists better
++ recognize top-level lists better
 
-+ Markdown.pl: output deterministic documents
++ output deterministic documents
 
-+ Markdown.pl: auto linkify without '<'...'>'
++ auto linkify without '<'...'>'
 
 
 1.0.4 (05 Jun 2016):