readme: add 'how to' instructions
diff --git a/README.md b/README.md
index 832cebd..d3472c2 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,17 @@
 ## Emacs Public archive
+-----------------------
 
 Find here multiple files for customizing Emacs
+
+### How to
+----------
+```
+# Clone this repo
+ $ git clone https://bitbucket.org/luigi_s/emacstore.git ~/.emacs/emacstore
+
+# Backup your old init.el
+ $ [ -f  ~/.emacs/init.el ] && mv ~/.emacs/init.el ~/.emacs/init.el.old
+
+# Link new init.el
+ $ ln -sf ~/.emacs/emacstore/init/init-home.el ~/.emacs/init.el
+```