Add Format Long Lines To Text Width as a vim til.

README.md

@@ -163,6 +163,7 @@ smart people at [Hashrocket](http://hashrocket.com/).
 - [Edges Of The Selection](vim/edges-of-the-selection.md)
 - [End Of The Word](vim/end-of-the-word.md)
 - [Filter Lines Through An External Program](vim/filter-lines-through-an-external-program.md)
+- [Format Long Lines To Text Width](vim/format-long-lines-to-text-width.md)
 - [Generate and Edit Rails Migration](vim/generate-and-edit-rails-migration.md)
 - [Head of File Name](vim/head-of-file-name.md)
 - [Help For Non-Normal Mode Features](vim/help-for-non-normal-mode-features.md)

vim/format-long-lines-to-text-width.md

@@ -0,0 +1,17 @@
+# Format Long Lines To Text Width
+
+Vim allows you to set the maximum width for text per line in a buffer. For
+example, you can set the maximum text width to 80 characters like so:
+
+```
+:set textwidth=80
+```
+
+With this set, vim will automatically break on whitespace whenever you hit
+80 characters. There are two places where this doesn't quite pan out. You
+will see this as soon as you open a file with lines of text that exceed 80
+characters and when you paste long lines of text into your buffer. You can
+quickly remedy this with `gw`.
+
+Make a visual selection of the lines that need formatting and then hit `gw`.
+All the lines should then we truncated to 80 or less characters.