Fix minor grammatical issues in README

Author: HarshaSai1234

README.rst

@@ -22,7 +22,7 @@ Please take a look at our documentation for how to install and use pip:
 * `Installation`_
 * `Usage`_
 
-We release updates regularly, with a new version every 3 months. Find more details in our documentation:
+We release updates regularly, with a new version every 3 months. You can find more details in our documentation:
 
 * `Release notes`_
 * `Release process`_
@@ -33,7 +33,7 @@ If you find bugs, need help, or want to talk to the developers, please use our m
 * `Discourse channel`_
 * `User IRC`_
 
-If you want to get involved head over to GitHub to get the source code, look at our development documentation and feel free to jump on the developer mailing lists and chat rooms:
+If you want to get involved, head over to GitHub to get the source code, look at our development documentation and feel free to jump on the developer mailing lists and chat rooms:
 
 * `GitHub page`_
 * `Development documentation`_