add installing git

README.md

@@ -22,6 +22,9 @@ Table of Contents
 
 # How to Git started
 
+## Install Git
+Download git for your operating system at: git-scm.com/downloads
+
 ## Using a GUI
 You can use any GUI for git, the ones we use are Fork and Sourcetree <br/>
 You can download these at https://www.sourcetreeapp.com/ and https://git-fork.com/
@@ -46,6 +49,7 @@ Cheatsheets: <br/>
 - Staging
 - Committing
 - Git push
+- Fork
 - Git pull request
 - Branching
 - Merge / Rebase