Update PULL_REQUEST_TEMPLATE.md

Start editing the PR template to provide a check list for authors.

Author: janajaeger

.github/PULL_REQUEST_TEMPLATE.md

@@ -13,3 +13,33 @@ Describe the overall goals of this pull request.
 
 * old xml:id...
 * old URL...
+
+### Check the articles's configuration
+* Make sure that all references and parameters are properly set in the DC file:
+  - [ ] Check the DC file name (hypenated, human-readable): *`TOPIC[-SUBTOPIC]-TITLE`*. Once set and published, this **must not ever** be changed again once the article is published.
+  - [ ] Set profiling attributes, if necessary.
+* Make sure the article's root ID in the `*.asm.xml` file matches the one provided in the DC file. **Do not ever** change this ID again once the article is published.
+  
+### Check the article's metadata
+- [ ] Is `dm:maintainer` for Bugzilla tickets set (add your e-mail address)?
+- [ ] Is `dm:translation` set (`yes`/`no`)?
+- [ ] Is the `maintainer` meta tag set (on assembly and topics)?
+- [ ] Are `title` and `meta title` set? `title` determines the title that's displayed in PDF/HTML. `meta title` is used for search engines and social media and should not exceed *55 characters*.
+- [ ] Are `description` and `social-descr` set? `description` is displayed on search engine results pages and should not exceed *150 characters*. `social-descr` is are displayed when the article is shared via social media and shout not exceed *55 characters*.
+- [ ] Is `series` set? This tag determines which type of documentation your article belongs to. *not supported yet, more info to come*.
+- [ ] Is `productname` set to the respective product name(s) and version(s)? Use the approved product acronym. *Do not use entities*.
+- [ ] Is 
+- [ ] ... type
+
+### Maintain the revision history
+Check the [SUSE Documentation Style Guide](https://documentation.suse.com/style/current/single-html/docu_styleguide/#sec-revhistory) for detailed instructions on how to maintain a revision history for your document.
+- [ ] Create a meaningful `revdescription` entry.
+- [ ] Set the revision history date to the date of your merge commit. The date format has to be *YYYY-MM-DD*.
+
+### Before you hand off your article
+- [ ] 
+
+### Detailed information
+<!-- -->
+
+