Fix table for plugin hooks to show vendored plugins don't run until after checkout

Author: triarius

pages/agent/v3/hooks.md.erb

@@ -120,10 +120,11 @@ they are run as part of each job:
 
 | Hook            | Location Order | Description |
 | --------------- | -------------- | ----------- |
-| `environment`   | <span class="add-icon-agent">Agent</span><br /><span class="add-icon-plugin">Non-vendored plugin</span><br /><span class="add-icon-plugin">Vendored plugin</span>                                                          | Runs before all other hooks. Useful for [exporting secret keys](/docs/pipelines/secrets#exporting-secrets-with-environment-hooks). |
-| `pre-checkout`  | <span class="add-icon-agent">Agent</span><br /><span class="add-icon-plugin">Non-vendored plugin</span><br /><span class="add-icon-plugin">Vendored plugin</span>                                                          | Runs before checkout. |
-| `checkout`      | <span class="add-icon-plugin">Non-vendored plugin</span><br /><span class="add-icon-plugin">Vendored plugin</span><br /><span class="add-icon-agent">Agent</span>                                                          | Overrides the default git checkout behavior.<br>*Note:* As of Agent v3.15.0, if multiple checkout hooks are found, only the first will be run. |
-| `post-checkout` | <span class="add-icon-agent">Agent</span><br /><span class="add-icon-repository">Repository</span><br /><span class="add-icon-plugin">Non-vendored plugin</span><br /><span class="add-icon-plugin">Vendored plugin</span> | Runs after checkout. |
+| `environment`   | <span class="add-icon-agent">Agent</span><br /><span class="add-icon-plugin">Non-vendored plugin</span>                                                                                                                    | Runs before all other hooks. Useful for [exporting secret keys](/docs/pipelines/secrets#exporting-secrets-with-environment-hooks). |
+| `pre-checkout`  | <span class="add-icon-agent">Agent</span><br /><span class="add-icon-plugin">Non-vendored plugin</span>                                                                                                                    | Runs before checkout. |
+| `checkout`      | <span class="add-icon-plugin">Non-vendored plugin</span><br /><span class="add-icon-agent">Agent</span>                                                                                                                    | Overrides the default git checkout behavior.<br>*Note:* As of Agent v3.15.0, if multiple checkout hooks are found, only the first will be run. |
+| `post-checkout` | <span class="add-icon-agent">Agent</span><br /><span class="add-icon-repository">Repository</span><br /><span class="add-icon-plugin">Non-vendored plugin</span>                                                           | Runs after checkout. |
+| `environment`   | <span class="add-icon-plugin">Vendored plugin</span>                                                                                                                                                                       | Unlike other plugins, environment hooks for vendored plugins run after checkout. |
 | `pre-command`   | <span class="add-icon-agent">Agent</span><br /><span class="add-icon-repository">Repository</span><br /><span class="add-icon-plugin">Non-vendored plugin</span><br /><span class="add-icon-plugin">Vendored plugin</span> | Runs before the build command |
 | `command`       | <span class="add-icon-plugin">Non-vendored plugin</span><br /><span class="add-icon-plugin">Vendored plugin</span><br /><span class="add-icon-repository">Repository</span><br /><span class="add-icon-agent">Agent</span> | Overrides the default command running behavior. If multiple command hooks are found, only the first will be run. |
 | `post-command`  | <span class="add-icon-agent">Agent</span><br /><span class="add-icon-repository">Repository</span><br /><span class="add-icon-plugin">Non-vendored plugin</span><br /><span class="add-icon-plugin">Vendored plugin</span> | Runs after the command. |