Merge pull request #7 from eigenfoo/improve-doc

DOC: improve documentation

README.md

@@ -4,7 +4,7 @@ A Vim plugin for the [Stan probabilistic programming
 language](https://mc-stan.org/).
 
 <p align="center">
-  <a href="https://raw.github.com/eigenfoo/stan-vim/master/screenshots/screenshot0.png"><img src="https://raw.github.com/eigenfoo/stan-vim/master/screenshots/screenshot0.png" alt="Screenshot of stan-vim syntax highlighting"></a>
+  <a href="https://raw.github.com/eigenfoo/stan-vim/master/screenshots/screenshot0.png"><img src="https://raw.github.com/eigenfoo/stan-vim/master/screenshots/screenshot0.png" alt="Screenshot of stan-vim syntax highlighting" width="600"></a>
 </p>
 
 ## Table of Contents
@@ -76,11 +76,15 @@ GitHub](https://github.com/eigenfoo/stan-vim/blob/master/doc/stan.txt).
 ## Additional Screenshots
 
 <p align="center">
-  <a href="https://raw.github.com/eigenfoo/stan-vim/master/screenshots/screenshot1.png"><img src="https://raw.github.com/eigenfoo/stan-vim/master/screenshots/screenshot1.png" alt="Screenshot of stan-vim syntax highlighting"></a>
+  <a href="https://raw.github.com/eigenfoo/stan-vim/master/screenshots/screenshot1.png"><img src="https://raw.github.com/eigenfoo/stan-vim/master/screenshots/screenshot1.png" alt="Screenshot of stan-vim syntax highlighting" width="600"></a>
 </p>
 
 <p align="center">
-  <a href="https://raw.github.com/eigenfoo/stan-vim/master/screenshots/screenshot2.png"><img src="https://raw.github.com/eigenfoo/stan-vim/master/screenshots/screenshot2.png" alt="Screenshot of stan-vim syntax highlighting"></a>
+  <a href="https://raw.github.com/eigenfoo/stan-vim/master/screenshots/screenshot2.png"><img src="https://raw.github.com/eigenfoo/stan-vim/master/screenshots/screenshot2.png" alt="Screenshot of stan-vim syntax highlighting" width="600"></a>
+</p>
+
+<p align="center">
+  <a href="https://raw.github.com/eigenfoo/stan-vim/master/screenshots/screenshot3.png"><img src="https://raw.github.com/eigenfoo/stan-vim/master/screenshots/screenshot3.png" alt="Screenshot of stan-vim syntax highlighting" width="600"></a>
 </p>
 
 ## License

doc/stan.txt

@@ -28,7 +28,7 @@ CONTENTS                                                        *stan-contents*
 
   1. Introduction.....................................|stan-intro|
   2. Installation.....................................|stan-install|
-  3. About............................................|stan-about|
+  3. Features.........................................|stan-features|
   4. License..........................................|stan-license|
   5. Contributing.....................................|stan-contrib|
   6. Credits..........................................|stan-credits|
@@ -71,7 +71,7 @@ INSTALLATION                                                     *stan-install*
   * For manual installation, copy all files into your `~/.vim` directory.
 
 ===============================================================================
-ABOUT                                                              *stan-about*
+FEATURES                                                        *stan-features*
 
   * stan-vim supports syntax highlighting of Stan types, keywords and built-in
     functions, including sampling statements and random number generators. All
@@ -132,6 +132,10 @@ stan-vim is developed and maintained in a public repository on GitHub.
 
       https://github.com/eigenfoo/stan-vim
 
+In addition to GitHub, stan-vim is released and distributed on Vim Online.
+
+      https://www.vim.org/scripts/script.php?script_id=5835
+
 If you have a bug report, feature request or other question, please file an
 issue on GitHub: