Create a documentation issue template for DejaCode

Author: DennisClark

.github/ISSUE_TEMPLATE/dejacode-documentation.md

@@ -0,0 +1,14 @@
+---
+name: DejaCode documentation
+about: Request a DejaCode documentation improvement
+title: 'DOC: '
+labels: documentation
+assignees: ''
+
+---
+
+**What type of documentation would you like?**
+How-to, Reference, Tutorial, on-screen prompt
+
+**Documentation topic**
+Describe the features of DejaCode that would benefit from more explanation.