chore(docs): Update plugin count in part 3 of the tutorial (#36455)

Update plugin count in part 3 of the tutorial

docs/docs/tutorial/part-3/index.mdx

@@ -35,7 +35,7 @@ Don't want to miss any future livestreams? Follow our [Gatsby Twitch channel](ht
 
 In Gatsby terms, a **plugin** is a separate npm package that you install to add extra features to your site.
 
-There are a variety of plugins that each have different use cases. Some plugins provide pre-built components, others add analytics, others let you pull data into your site. Some plugins are built by Gatsby employees, while other plugins are built and maintained by community members. So far, there are more than 2,600 plugins to choose from. You can look through all the available plugins using the [Gatsby Plugin Library](/plugins).
+There are a variety of plugins that each have different use cases. Some plugins provide pre-built components, others add analytics, others let you pull data into your site. Some plugins are built by Gatsby employees, while other plugins are built and maintained by community members. So far, there are more than 3,000 plugins to choose from. You can look through all the available plugins using the [Gatsby Plugin Library](/plugins).
 
 You can think of a plugin as an accessory for your site. You don't _need_ to use plugins - you could build out the same functionality from scratch yourself - but they save you time. They're like those fancy single-purpose cooking gadgets that peel apples or crush garlic. You could accomplish the same task using a regular knife, but it's often faster to use a tool that's built to do that one specific job really well.