Add pull request template (#670)

pull_request_template.md

@@ -0,0 +1,19 @@
+<!--Please fill in the **bold** fields, and tick all applicable boxes in the "Preview" tab.-->
+
+**URL to your list here**
+
+**Explain what your list is about and why it is awesome enough to be included here.**
+
+- [ ] I have read and understood the [contribution guidelines](https://github.com/sindresorhus/awesome/blob/master/contributing.md).
+- [ ] I have read and understood [create-list.md](https://github.com/sindresorhus/awesome/blob/master/create-list.md).
+- [ ] This PR (and commit) have a descriptive title.
+- The list I added
+
+  - [ ] is not a duplicate,
+  - [ ] has been around for a few weeks,
+  - [ ] only has awesome items with descriptions,
+  - [ ] contains the [awesome badge](https://github.com/sindresorhus/awesome/blob/master/awesome.md#awesome-badge),
+  - [ ] has an [appropriate license](https://github.com/sindresorhus/awesome/blob/master/awesome.md#choose-an-appropriate-license): **your license type here (e.g. CC0, CC-BY, ...)**,
+  - [ ] has [contribution guidelines](https://github.com/sindresorhus/awesome/blob/master/awesome.md#include-contribution-guidelines),
+  - [ ] has been checked for inconsistent formatting, spelling and grammar, and
+  - [ ] has been added at the bottom of the appropriate category.