diff --git a/README.md b/README.md
index c8a28fa..912d5f4 100644
--- a/README.md
+++ b/README.md
@@ -40,8 +40,12 @@ bower install markdown-it --save
 
 ## Usage examples
 
-See __[API documentation](https://markdown-it.github.io/markdown-it/)__ for more
-info and examples.
+See also:
+
+- __[API documentation](https://markdown-it.github.io/markdown-it/)__ - for more
+  info and examples.
+- [Development info](https://github.com/markdown-it/markdown-it/tree/master/docs) -
+  for plugins writers.
 
 
 ### Simple
@@ -152,6 +156,9 @@ var md = require('markdown-it')({
 
 [API documentation](https://markdown-it.github.io/markdown-it/)
 
+If you are going to write plugins - take a look at
+[Development info](https://github.com/markdown-it/markdown-it/tree/master/docs).
+
 
 ## Syntax extensions
 
diff --git a/docs/architecture.md b/docs/architecture.md
index d933962..afe6ad6 100644
--- a/docs/architecture.md
+++ b/docs/architecture.md
@@ -2,8 +2,8 @@
 
 ## Data flow
 
-Parse process is unified as much as possible. Input data is piped via nestesd
-chains of rules. There are 3 "main" chains (core / block / inline):
+Input data is piped via nestesd chains of rules. There are 3 nested chains -
+`core`, `block` & `inline`:
 
 ```
 core
@@ -44,42 +44,44 @@ data and protect code from clutter.
 ## Token stream
 
 Instead of traditional AST we use more low-level data representation - tokens.
-Difference is very simple.
+Difference is simple:
 
-- tokens are sequence (Array)
-- opening and closing tags are separate tokens
-- there are special token object, "inline containers", having nested token
-  sequences with inline markup (bold, italic, text)
+- Tokens are sequence (Array).
+- Opening and closing tags are separate tokens.
+- There are special token object, "inline containers", having nested token
+  sequences with inline markup (bold, italic, text, ...).
 
-Each token has 2 mandatory fields:
+Each token has common fields:
 
 - __type__ - token name.
-- __level__ - nesting level, useful to seek matched pair.
+- __level__ - nesting level, useful to seek closeing pair.
 - __lines__ - [begin, end], for block tokens only. Range of input lines,
-  compiled to this token
+  compiled to this token.
 
 Inline container (`type === "inline"`) has additional properties:
 
 - __content__ - raw text, unparsed inline content.
 - __children__ - token stream for parsed content.
 
-See [renderer source](https://github.com/markdown-it/markdown-it/blob/master/lib/renderer.js)
-for available tokens and those properties. Currently there are no special
-requirements on tokens naming and additional fields.
-
 In total, token stream is:
 
-- Array of paired or single "block" tokens, on top level:
-  - open/close for headers, lists, blockquotes paragraphs
+- On the top level - array of paired or single "block" tokens:
+  - open/close for headers, lists, blockquotes, paragraphs, ...
   - codes, fenced blocks, horisontal rules, html blocks, inlines containers
-- Inline containers have "substream" Array with inline tags:
+- Each inline containers have `.children` property with token stream for inline content:
   - open/close for strong, em, link, code, ...
   - text, line breaks
 
 Why not AST? Because it's not needed for our tasks. We follow KISS principle.
-If you whish - you can call parser withour renderer and convert token stream
+If you whish - you can call parser without renderer and convert token stream
 to AST.
 
+Where to search more details about tokens:
+
+- [Renderer source](https://github.com/markdown-it/markdown-it/blob/master/lib/renderer.js)
+- [Live demo](https://markdown-it.github.io/) - type your text ant click `debug` tab.
+
+
 ## Parse process
 
 This was mentioned in [Data flow](#data-flow), but let's repeat sequence again:
diff --git a/docs/development.md b/docs/development.md
index 627d5dc..f9b0d8e 100644
--- a/docs/development.md
+++ b/docs/development.md
@@ -9,14 +9,15 @@ Prior to continue, make sure you've readed:
 
 ## General considerations for plugins.
 
-1. Try to understand, where your plugin rule sould be located
+1. Try to understand, where your plugin rule sould be located.
   - Will it conflict with existing markup (by priority)?
     - If yes - you need to write inline or block rule.
     - If no - you can morth tokens in core chain.
   - Remember, that tokens morphing in core is always more simple than writing
-    block / inline rules. However, block / inline rules are usually faster
+    block / inline rules (if you don't copy existing one). However,
+    block & inline rules are usually faster.
   - Sometime it's enougth to modify renderer only (for example, to add
-    header IDs or target=_blank for the links)
+    header IDs or `target="_blank"` for the links).
 2. Search existing [plugins](https://www.npmjs.org/browse/keyword/markdown-it-plugin)
    or [rules](https://github.com/markdown-it/markdown-it/tree/master/lib),
    doing something similar. It can me more simple to modify existing code,
@@ -39,6 +40,7 @@ To simplify search:
 
 ## FAQ
 
+
 #### I need async rule, how to do it?
 
 Sorry. You can't do it directly. All complex parsers are sync by nature. But you
@@ -47,4 +49,18 @@ can use workarounds:
 1. On parse phase, replace content by random number and store it in `env`.
 2. Do async processing over collected data.
 3. Render content and replace those random numbers with text
-   (or replace first, then render)
+   (or replace first, then render).
+
+Or you can render html, then parse is to DOM (or
+[cheerio](https://github.com/cheeriojs/cheerio) AST) and apply transformations
+in more convenient way.
+
+
+#### How to replace part of text token with link?
+
+Righ sequence is to split text to several tokens and add link tokens between.
+Result will be: `text` + `link_open` + `text` + `link_close` + `text`.
+
+See implementations of [linkify](https://github.com/markdown-it/markdown-it/blob/master/lib/rules_core/linkify.js) & [emoji](https://github.com/markdown-it/markdown-it-emoji/blob/master/lib/replace.js) - those do similar things.
+
+__Note.__ Don't try to replace text with html markup! That's not secure.