Update README.md with detailed explanation and SQL reference

.woodpecker.yml

@@ -31,5 +31,11 @@ steps:
       PLUGIN_TITLE: "Release ${CI_COMMIT_TAG}"
       PLUGIN_NOTE: "Plugin Reference Cleaner ${CI_COMMIT_TAG}\n\nSee [CHANGELOG.md](https://gitea.wpallstars.com/wpallstars/plugin-reference-cleaner/src/branch/main/CHANGELOG.md) for details."
   
+  test:
+    image: alpine:latest
+    commands:
+      - echo "Hello from Woodpecker CI"
+      - echo "Testing minimal configuration"
+
 when:
-  event: tag 
+  event: [push, tag, pull_request] 

README.md

@@ -1,14 +1,24 @@
 # Plugin Reference Cleaner
 
-A WordPress plugin that adds a "Remove Reference" button to plugin deactivation error notices, allowing users to clean up invalid plugin entries in the database.
+Have you ever deleted a plugin some other way than on the `/wp-admin/plugins.php` page, you'll probabaly have been stuck with this annoying notifications that can't be cleared:
+
+> "The plugin folder-name/file-name.php has been deactivated due to an error: Plugin file does not exist."
+
+This small WordPress utility plugin adds a "Remove Reference" button to these plugin deactivation error notices, allowing you to clean up the invalid plugin entries in the database.
 
 ## Description
 
 When WordPress detects a plugin file that no longer exists but is still referenced in the database as active, it displays an error notice. This plugin enhances those notices with a button that allows you to safely remove the invalid reference with a single click.
 
+You can find these with `SELECT * FROM wp_options WHERE option_name = 'active_plugins';` — but, the cleanup involved removing the rogue entry, and renumbering the others. This plugin can simply do that for you at the click of a button added to that WP standard notification.
+
+It's probabaly something that should be added to WP core. If anyone from the core team wants to adopt this solution, it's GPL, so feel free.
+
 **Note:** This plugin only needs to be installed and active if you have an error notification showing like this:
 "The plugin folder-name/file-name.php has been deactivated due to an error: Plugin file does not exist."
 
+If you don't have this notification perpetually showing on your `/wp-admin/plugins.php` page, then you don't need this, but you might like to save or bookmark it for if ever you do.
+
 ## Features
 
 * Adds a "Remove Reference" button to plugin error notices