Add Coercing Casing With vim-abolish as a vim til.

README.md

@@ -263,6 +263,7 @@ smart people at [Hashrocket](http://hashrocket.com/).
 - [Check Your Current Color Scheme](vim/check-your-current-color-scheme.md)
 - [Close the Current Buffer](vim/close-the-current-buffer.md)
 - [Coerce The Current Filetype](vim/coerce-the-current-filetype.md)
+- [Coercing Casing With vim-abolish](vim/coercing-casing-with-vim-abolish.md)
 - [Count the Number of Matches](vim/count-the-number-of-matches.md)
 - [Create A New Directory In netrw](vim/create-a-new-directory-in-netrw.md)
 - [Create A New File In A New Directory](vim/create-a-new-file-in-a-new-directory.md)

vim/coercing-casing-with-vim-abolish.md

@@ -0,0 +1,12 @@
+# Coercing Casing With vim-abolish
+
+The [`vim-abolish`](https://github.com/tpope/vim-abolish) plugin provides a
+couple handy shortcuts for quickly coercing the casing of a variable.
+
+For instance, if you have a variable in camel case and you want to change it
+snake case, you can navigate over the variable and hit `crs` (e.g.
+`myFavoriteVariable` -> `my_favorite_variable`).
+
+Similarly, you can hit `crc` to change a variable to camel case.
+
+It even has support for mixed case (`crm`) and uppercase (`cru`).