[DOCS] add template request issue template

Author: bnbong

.github/ISSUE_TEMPLATE/template_request.md

@@ -0,0 +1,23 @@
+---
+name: Template request
+about: Issuing adding new FastAPI template or updating existing template
+title: ''
+labels: ''
+assignees: ''
+
+---
+# Request adding new FastAPI template or updating existing template
+
+> After making issue, please refer it on your commit message
+
+## Summary
+
+> Please briefly explain what kind of template it is or what kind of update you want to make
+
+(Write here)
+
+## Template Stack
+
+> Please write the stack of the template
+
+(Write here)