Added installation instructions to README.md

Author: DennisKehrig

README.md

@@ -1,4 +1,11 @@
 Brackets: Reload in Browser
 ===========================
 
-Adds a toolbar button and shortcut to reload the page in the browser.
+Adds a toolbar button and shortcut to reload the page in the browser.
+
+Installation
+------------
+
+Clone the repository into extensions/user
+
+	git clone https://github.com/DennisKehrig/brackets.ReloadInBrowser.git brackets/src/extensions/user/ReloadInBrowser