github: I want to review changes to the AUTHORS file and top level READMEs

Also move the issue template stuff for less clutter

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,32 @@
+### Purpose
+
+Describe the purpose of this change. If there is an existing issue that is
+resolved by this pull request, ensure that the commit subject is on the form
+`Some short description (fixes #1234)` where 1234 is the issue number.
+
+### Testing
+
+Describe what testing has been done, and how the reviewer can test the change
+if new tests are not included.
+
+### Screenshots
+
+If this is a GUI change, include screenshots of the change. If not, please
+feel free to just delete this section.
+
+### Documentation
+
+If this is a user visible change (including API and protocol changes), add a link here
+to the corresponding pull request on https://github.com/syncthing/docs or describe
+the documentation changes necessary.
+
+### Authorship
+
+Every author of a code contribution (Go, Javascript, HTML, CSS etc, with the
+possible exception of minor typo corrections and similar) is recorded in the
+AUTHORS and NICKS files and the in-GUI credits. If this is your first
+contribution, a maintainer will add you properly before accepting the
+contribution. You need not do so yourself or worry about the fact that the
+"authors" automated test fails. However, if your name (such as you want it
+presented in the credits) is not visible on your Github profile or in your
+commit messages, please assist by providing it here.