[INFRA] Adding instructions for naming PRs

CONTRIBUTING.md

@@ -95,6 +95,22 @@ Try to keep the changes focused. If you submit a large amount of work in all in
 
 #### 4. Submit a [pull request](https://help.github.com/articles/about-pull-requests/)
 
+Please keep the title of your pull request short but informative - it will 
+appear in the changelog.
+
+Use one of the following prefixes in the title of your pull request:
+  - `[ENH]` - enhancement of the specification that adds a new feature or 
+    support for a new data type
+  - `[FIX]` - fix of a typo or language clarification
+  - `[INFRA]` - changes to the infrastructure automating the specification 
+    release (for example building HTML docs etc.)
+  - `[MISC]` - everything else including changes to the file listing 
+    contributors
+
+If you are opening a pull request to obtain early feedback, but the changes 
+are not ready to be merged (a.k.a. Work in Progress pull request) please 
+use [draft pull request](https://github.blog/2019-02-14-introducing-draft-pull-requests/).
+
 A member of the BIDS Specification team will review your changes to confirm that they can be merged into the main codebase.
 
 A [review](https://help.github.com/articles/about-pull-request-reviews/) will probably consist of a few questions to help clarify the work you've done. Keep an eye on your github notifications and be prepared to join in that conversation.

pull_request_template.md

@@ -0,0 +1,17 @@
+--- PLEASE READ AND DELETE THE TEXT BELOW BEFORE OPENING THE PULL REQUEST ---
+
+- Please keep the title of your pull request short but informative - it will 
+  appear in the changelog
+- Use one of the following prefixes in the title of your pull request:
+  - `[ENH]` - enhancement of the specification that adds a new feature or 
+    support for a new data type
+  - `[FIX]` - fix of a typo or language clarification
+  - `[INFRA]` - changes to the infrastructure automating the specification 
+    release (for example building HTML docs etc.)
+  - `[MISC]` - everything else including changes to the file listing 
+    contributors
+- If you are opening a pull request to obtain early feedback, but the changes 
+  are not ready to be merged (a.k.a. Work in Progress pull request) please 
+  use [draft pull request](https://github.blog/2019-02-14-introducing-draft-pull-requests/)
+
+--- PLEASE READ AND DELETE THE TEXT ABOVE BEFORE OPENING THE PULL REQUEST ---