relax: Allow flexible plugin naming and PR template

- Accept any langextract-* package names (not just langextract-provider-*)
- Add Related to option in PR template for doc-only changes

Author: aksg87

.github/PULL_REQUEST_TEMPLATE/pull_request_template.md

@@ -9,7 +9,9 @@ Replace this with a clear and concise change description
   alternatives considered, risks (such as breaking backwards compatibility), and
   any new dependencies. --->
 
-Fixes #[issue number]
+<!--- Use "Fixes #123" to auto-close the issue when merged (for bug fixes/implementations) -->
+<!--- Use "Related to #123" or "Addresses #123" for documentation updates or partial solutions -->
+Fixes/Related to #[issue number]
 
 Choose one: (Bug fix | Feature | Documentation | Testing | Code health | Other)
 

COMMUNITY_PROVIDERS.md

@@ -23,12 +23,12 @@ Copy this row template, replace placeholders, and insert **above** the marker li
 ```
 
 **Before submitting your PR:**
-- [ ] Plugin name follows `langextract-provider-<name>` convention
+- [ ] PyPI package name starts with `langextract-` (recommended: `langextract-provider-<name>`)
 - [ ] PyPI package is published (or will be soon) and listed in backticks
 - [ ] Maintainer(s) listed as GitHub profile links (comma-separated if multiple)
 - [ ] Repository link points to public GitHub repo
 - [ ] Description clearly explains what your provider does
-- [ ] Issue Link points to a tracking issue in the LangExtract repository
+- [ ] Issue Link points to a tracking issue in the LangExtract repository for integration and usage feedback (plugin-specific features and discussions can optionally happen in the plugin's repository)
 - [ ] Entries are sorted alphabetically by Plugin Name
 
 ## Documentation

scripts/validate_community_providers.py

@@ -117,6 +117,11 @@ def validate(filepath: Path) -> bool:
           f'Line {i+1}: PyPI package must be backticked and normalized (e.g.,'
           ' `langextract-provider-foo`).'
       )
+    elif pypi and not pypi.strip('`').lower().startswith('langextract-'):
+      errors.append(
+          f'Line {i+1}: PyPI package should start with `langextract-` for'
+          ' discoverability.'
+      )
 
     if not re.fullmatch(GH_MULTI_USER, maint):
       errors.append(