Add Coerce The Current Filetype as a vim til.

README.md

@@ -98,6 +98,7 @@ smart people at [Hashrocket](http://hashrocket.com/).
 - [Buffer Time Travel](vim/buffer-time-travel.md)
 - [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)
 - [Count the Number of Matches](vim/count-the-number-of-matches.md)
 - [Create A New File In A New Directory](vim/create-a-new-file-in-a-new-directory.md)
 - [Generate and Edit Rails Migration](vim/generate-and-edit-rails-migration.md)

vim/coerce-the-current-filetype.md

@@ -0,0 +1,17 @@
+# Coerce The Current Filetype
+
+If Vim doesn't recognize the filetype of the currently edited file, I can
+tell Vim what filetype to use. Consider, for instance, that I have a draft
+of a markdown file with the name, `documentation.md.draft`. Vim will not
+recognize this as a markdown file and will, thus, not apply markdown
+syntax highlighting to that file. I can easily tell Vim to treat this as a
+markdown file by setting its filetype:
+
+```
+:set filetype=markdown
+```
+
+Markdown syntax highlighting and other relevant options will now be applied
+to the current buffer.
+
+See `:h filetype` for more details.