Text changes in contribution document and PR template (#111)

* Update PR template to better fix current project progression

* Update community chatroom link

.github/CONTRIBUTING.md

@@ -16,7 +16,7 @@ When contributing to this repository, please first discuss the change you wish t
 
 Please start by search the issue tracker as your issue may have already been discussed or fixed. If it is something that is not yet discussed, please file a new issue in the issue tracker.
 
-You may also use the [official community chat on Slack](https://slack-helper.cityofzion.io/invite/T656BRXQ8) and join the software discussion on `#develop` channel.
+You may also use the [official community chat on Slack](https://discord.gg/R8v48YA) and join the software discussion on `#develop` channel.
 
 ## Core Style Guide
 

.github/PULL_REQUEST_TEMPLATE.md

@@ -12,21 +12,19 @@
 <!--- Include details of your testing environment, and the tests you ran to -->
 <!--- see how your change affects other areas of the code, etc. -->
 
-## Screenshots (if appropriate):
-
-## Types of changes
+## Types of changes:
 <!--- What types of changes does your code introduce? Put an `x` in all the boxes that apply: -->
+
 - [ ] Bug fix (non-breaking change which fixes an issue)
 - [ ] New feature (non-breaking change which adds functionality)
 - [ ] Breaking change (fix or feature that would cause existing functionality to change)
 
 ## Checklist:
 <!--- Go over all the following points, and put an `x` in all the boxes that apply. -->
 <!--- If you're unsure about any of these, don't hesitate to ask. We're here to help! -->
+
 - [ ] My code follows the code style of this project.
 - [ ] My change requires a change to the documentation.
 - [ ] I have updated the documentation accordingly.
 - [ ] I have read the **CONTRIBUTING** document.
 - [ ] I have added tests to cover my changes.
-- [ ] All new and existing tests passed.
-