Add ack --bar as a til and add the ack section

Author: jbranchaud

README.md

@@ -7,12 +7,13 @@ variety of languages and technologies. These are things that don't really
 warrant a full blog post. These are mostly things I learn by pairing with
 smart people at [Hashrocket](http://hashrocket.com/).
 
-_514 TILs and counting..._
+_515 TILs and counting..._
 
 ---
 
 ### Categories
 
+* [Ack](#ack)
 * [Chrome](#chrome)
 * [Clojure](#clojure)
 * [CSS](#css)
@@ -35,6 +36,10 @@ _514 TILs and counting..._
 
 ---
 
+### Ack
+
+- [ack --bar](ack/ack-bar.md)
+
 ### Chrome
 
 - [Pretty Print Tabular Data](chrome/pretty-print-tabular-data.md)

ack/ack-bar.md

@@ -0,0 +1,10 @@
+# ack --bar
+
+There is a fun Easter egg in the `ack` command that dumps a Star Wars meme
+to the command line. Give it a try.
+
+```bash
+$ ack --bar
+```
+
+See `man ack` for more details.