PULL_REQUEST_TEMPLATE.md: Add pull request template

Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,16 @@
+<!--
+Please make sure you've read and understood our contributing guidelines.
+
+For additional information on the contribution guidelines:
+https://wiki.yoctoproject.org/wiki/Contribution_Guidelines#General_Information
+
+If this PR fixes an issue, make sure your description includes "fixes #xxxx".
+
+If this PR connects to an issue, make sure your description includes "connected to #xxxx".
+
+Please provide the following information:
+-->
+
+**- What I did**
+
+**- How I did it**