Update issue templates (#452)

.github/ISSUE_TEMPLATE/help-center-edit-suggestion.md

@@ -0,0 +1,14 @@
+---
+name: Help Center Edit/Suggestion
+about: Suggest an edit or addition to the Bitwarden Help Center.
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+Suggest an edit, addition, or any other comment specific to the Bitwarden Help Center (i.e. Documentation). If this suggestion is for a specific article, please supply the article title or link.
+
+For things related to Bitwarden apps:
+- FEATURE REQUESTS: https://community.bitwarden.com/t/about-the-feature-requests-category/12/2.
+- BUG REPORTS: Create an Issue in the appropriate repository (e.g. bitwarden/mobile, bitwarden/desktop).