Add notes for useful software.

README.md

@@ -9,6 +9,14 @@ Clone this repo into your home directory using:
 git clone git@git.xchg.sh:angrygoats/emacs-config.git .emacs.d
 ```
 
+## Nice Things
+
+There are some things you should install locally:
+
+1. [https://github.com/sharkdp/fd#installation](fd). Projectile will use this automatically if installed.
+2. [https://github.com/BurntSushi/ripgrep](ripgrep). Projectile will use this automatically if installed.
+
+
 ![emacs screenshot](emacs.png)
 
 ## Troubleshooting