Fix inaccurate workflow list in manual triggering docs

Remove references to non-existent workflows (main.yml and
rspec-package-specs.yml). List only the workflows that actually exist
and support workflow_dispatch:

- package-js-tests.yml (has force_run parameter)
- lint-js-and-ruby.yml (has force_run parameter)
- playwright.yml (no force_run parameter)

Add note that other workflows may support workflow_dispatch and readers
should check individual files in .github/workflows/ for configuration
and available input parameters.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: justin808

.github/read-me.md

@@ -148,11 +148,10 @@ gh run list --workflow=package-js-tests.yml
 The following workflows can be manually triggered with `workflow_dispatch`:
 
 - **`package-js-tests.yml`** - Accepts `force_run` parameter (boolean) to bypass change detection
-- **`main.yml`** - Accepts `force_run` parameter (boolean) to bypass change detection
 - **`lint-js-and-ruby.yml`** - Accepts `force_run` parameter (boolean) to bypass change detection
-- **`rspec-package-specs.yml`** - Accepts `force_run` parameter (boolean) to bypass change detection
-- **`playwright.yml`** - Can be triggered manually
-- And others - check individual workflow files for `workflow_dispatch` configuration
+- **`playwright.yml`** - Can be triggered manually (does not accept `force_run` parameter)
+
+Other workflows may also support `workflow_dispatch`. Check individual workflow files in `.github/workflows/` for `workflow_dispatch` configuration and available input parameters.
 
 ### Why Use Manual Triggers?