update README

README.rst

@@ -1,11 +1,28 @@
 HowTo - StackOverflow Code Search Tool
 =====================================
 
-Quick code answers from StackOverflow API, Just ask a question with an optional
-tag parameter to get quick code answers
+Quick code answers from StackOverflow API.
+ Just ask a question with an optional tag parameter to get quick code answers.
 
-USAGE:
-=====
+Installation
+------------
+
+Using pypi repository
+
+::
+
+    pip install howto
+
+Forking this repo
 
 ::
+
+    python setup.py install
+
+
+Usage
+-----
+
+::
+
     ./howto 'filter dicts' -t python