Add Incremental Searching as a vim til.

README.md

@@ -97,6 +97,7 @@ smart people at [Hashrocket](http://hashrocket.com/).
 - [Head of File Name](vim/head-of-file-name.md)
 - [Help For Non-Normal Mode Features](vim/help-for-non-normal-mode-features.md)
 - [Horizontal to Vertical and Back Again](vim/horizontal-to-vertical-and-back-again.md)
+- [Incremental Searching](vim/incremental-searching.md)
 - [Interactive Buffer List](vim/interactive-buffer-list.md)
 - [Joining Lines Together](vim/joining-lines-together.md)
 - [List All Buffers](vim/list-all-buffers.md)

vim/incremental-searching.md

@@ -0,0 +1,12 @@
+# Incremental Searching
+
+You can do a text-based search on the contents of your current buffer by
+hitting `/` and then beginning to type a pattern (including regex). The
+`incsearch` feature makes searching for text even easier. As you type your
+pattern, the first valid match will be located and highlighted. As you
+continue to type the pattern, it will continue to update the highlighted
+match. Incremental searching makes it easy to see when you've made
+a typo in your pattern. By default `incsearch` is turned off in Vim. You
+can enable it with `set incsearch`.
+
+See `h incsearch` for more details.