Exclude lib site-packages from overall coverage score (keras-team#423)

* Coverage value should not include keras

* Add Pull Request Template

* Take pull request template from Keras

* Keras-contrib in docstring

PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,21 @@
+<!--
+Please make sure you've read and understood our contributing guidelines;
+https://github.com/keras-team/keras-contrib/blob/master/CONTRIBUTING.md
+-->
+
+**- What I did**
+
+
+**- How I did it**
+
+
+**- How you can verify it**
+<!-- 
+You need a good justification for not including tests if your pull request is 
+a bug fix or adds a new feature to Keras-contrib. 
+-->
+
+
+
+---
+This pull request fixes #issue_number_here

pytest.ini

@@ -4,7 +4,6 @@ addopts=-v
         -n 2
         --durations=10
         --cov-report term-missing
-        --cov=keras
 
 # Do not run tests in the build folder
 norecursedirs= build