Update README.md

README.md

@@ -110,7 +110,11 @@ See [Linguist::Generated#generated?](https://github.com/github/linguist/blob/mas
 
 ## Overrides
 
-Linguist supports custom overrides for language definitions and vendored paths. Add a `.gitattributes` file to your project using the keys `linguist-language` and `linguist-vendored` with the standard git-style path matchers for the files you want to override.
+Linguist supports a number of different custom overrides strategies for language definitions and vendored paths. 
+
+### Using gitattributes
+
+Add a `.gitattributes` file to your project using the keys `linguist-language` and `linguist-vendored` with the standard git-style path matchers for the files you want to override.
 
 Please note that the overrides currently only affect the language statistics for a repository and not the syntax-highlighting of files.
 
@@ -133,6 +137,20 @@ special-vendored-path/* linguist-vendored
 jquery.js linguist-vendored=false
 ```
 
+### Using Emacs and Vim modelines
+
+Alternatively, you can use Vim and Emacs style modelines to set the language for a single file. Modelines can be placed anywhere within a file and are respected when determining how to syntax-highlight a file on GitHub.com
+
+```
+Vim-style
+vim: set filetype=prolog: 
+vim: set ft=cpp:
+
+Emacs-style
+-*- mode: php;-*-
+```
+
+
 ## Installation
 
 Github.com is usually running the latest version of the `github-linguist` gem that is released on [RubyGems.org](http://rubygems.org/gems/github-linguist).