Rollup merge of rust-lang#98812 - gimbles:docs-template, r=Mark-Simulacrum

feat: Add a documentation problem issue template

Fixes rust-lang#98722 :)

Author: RalfJung

.github/ISSUE_TEMPLATE/documentation.md

@@ -0,0 +1,16 @@
+---
+name: Documentation problem
+about: Create a report for a documentation problem.
+labels: A-docs
+---
+<!--
+Thank you for finding a documentation problem! 📚
+
+Documentation problems might be grammatical issues, typos, or unclear wording, please provide details regarding the documentation including where it is present.
+
+-->
+
+### Location
+
+### Summary
+