Update README.md

Author: sksuryan

README.md

@@ -1,2 +1,9 @@
-# git-bash-theme
-A Git-Bash theme inspired from robbyrussell theme for zsh shell
+# Robby Russell theme for Git-Bash
+A Git-Bash theme inspired from robbyrussell theme for zsh shell.
+
+Steps for use(Windows):
+1. Download git-prompt.sh.
+2. Navigate to 'C:\Program Files\Git\etc\profile.d'.
+3. Replace the original git-prompt.sh.
+
+