Merge pull request #5174 from segmentio/joeynmq-patch-3

Amend public docs for Critical Plugin

Author: pwseg

src/connections/sources/catalog/libraries/website/javascript/index.md

@@ -654,16 +654,20 @@ Though middlewares function the same as plugins, it's best to use plugins as the
 ### Plugin categories
 Plugins are bound by Analytics 2.0 which handles operations such as observability, retries, and error handling. There are two different categories of plugins:
 * **Critical Plugins**: Analytics.js expects this plugin to be loaded before starting event delivery. Failure to load a critical plugin halts event delivery. Use this category sparingly, and only for plugins that are critical to your tracking.
+
+| Type          | Details                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
+| ------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
+| `before`      | Executes before event processing begins. These are plugins that run before any other plugins run. <br><br>For example, validating events before passing them along to other plugins. A failure here could halt the event pipeline. <br><br> See the example of how Analytics.js uses the [Event Validation plugin](https://github.com/segmentio/analytics-next/blob/master/packages/browser/src/plugins/validation/index.ts){:target="_blank"} to verify that every event has the correct shape. |
+
 * **Non-critical Plugins**: Analytics.js can start event delivery before this plugin finishes loading. This means your plugin can fail to load independently from all other plugins. For example, every Analytics.js destination is a non-critical plugin. This makes it possible for Analytics.js to continue working if a partner destination fails to load, or if users have ad blockers turned on that are targeting specific destinations.
 
 > info ""
 > Non-critical plugins are only non-critical from a loading standpoint. For example, if the `before` plugin crashes, this can still halt the event delivery pipeline.
 
-Non-critical plugins run through a timeline that executes in order of insertion based on the entry type. Segment has these five entry types of non-critical plugins:
+Non-critical plugins run through a timeline that executes in order of insertion based on the entry type. Segment has these four entry types of non-critical plugins:
 
 | Type          | Details                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
 | ------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
-| `before`      | Executes before event processing begins. These are plugins that run before any other plugins run. <br><br>For example, validating events before passing them along to other plugins. A failure here could halt the event pipeline. <br><br> See the example of how Analytics.js uses the [Event Validation plugin](https://github.com/segmentio/analytics-next/blob/master/packages/browser/src/plugins/validation/index.ts){:target="_blank"} to verify that every event has the correct shape. |
 | `enrichment`  | Executes as the first level of event processing. These plugins modify an event. <br><br> See the example of how Analytics.js uses the [Page Enrichment plugin](https://github.com/segmentio/analytics-next/blob/master/packages/browser/src/plugins/page-enrichment/index.ts){:target="_blank"} to enrich every event with page information.                                                                                                                                                     |
 | `destination` | Executes as events begin to pass off to destinations. <br><br> This doesn't modify the event outside of the specific destination, and failure doesn't halt the execution.                                                                                                                                                                                                                                                                                                                        |
 | `after`       | Executes after all event processing completes. You can use this to perform cleanup operations. <br><br>An example of this is the [Segment.io Plugin](https://github.com/segmentio/analytics-next/blob/master/packages/browser/src/plugins/segmentio/index.ts){:target="_blank"} which waits for destinations to succeed or fail so it can send it observability metrics.                                                                                                                         |