Add Checklist to PRs (#1041)

* Update PULL_REQUEST_TEMPLATE.md

* Update PULL_REQUEST_TEMPLATE.md

* Update PULL_REQUEST_TEMPLATE.md

* Update .github/PULL_REQUEST_TEMPLATE.md

Co-Authored-By: nitrohorse <1514352+nitrohorse@users.noreply.github.com>

* Update .github/PULL_REQUEST_TEMPLATE.md

Co-Authored-By: Jonah Aragon <jonah@triplebit.net>

* Update .github/PULL_REQUEST_TEMPLATE.md

Co-Authored-By: Jonah Aragon <jonah@triplebit.net>

* Update .github/PULL_REQUEST_TEMPLATE.md

Co-Authored-By: Jonah Aragon <jonah@triplebit.net>

* Update PULL_REQUEST_TEMPLATE.md

* Add discussion checkbox

* Trigger build

.github/PULL_REQUEST_TEMPLATE.md

@@ -2,10 +2,16 @@
 
 ## Description
 
-Resolves: #none <!-- The number of the issue that is resolved by this pull request. If there is none, feel free to delete this line -->
+Resolves: #none <!-- The number of the issue that is resolved by this pull request. If there is none, feel free to delete this line 
 
-<!--
-## Screenshots
+#### Check List <!-- Please add an x in each box below, like so: [x] -->
 
-Please add screenshots if applicable
--->
+- [ ] I have read and understand [CONTRIBUTING.md](https://github.com/privacytoolsIO/privacytools.io/blob/master/.github/CONTRIBUTING.md).
+
+- [ ] I have listed the source code for this project in [source_code.md](https://github.com/privacytoolsIO/privacytools.io/blob/master/source_code.md).
+
+- [ ] This project is [free/libre software](https://www.wikipedia.org/wiki/Free_software).
+
+- [ ] This project has an [associated discussion](https://github.com/privacytoolsIO/privacytools.io/issues).
+
+Code Repository (if applicable):