Docs: Update README plugin count (#2336)

Author: yocontra

README.md

@@ -12,7 +12,7 @@
 
 - **Automation** - gulp is a toolkit that helps you automate painful or time-consuming tasks in your development workflow.
 - **Platform-agnostic** - Integrations are built into all major IDEs and people are using gulp with PHP, .NET, Node.js, Java, and other platforms.
-- **Strong Ecosystem** - Use npm modules to do anything you want + over 2000 curated plugins for streaming file transformations
+- **Strong Ecosystem** - Use npm modules to do anything you want + over 3000 curated plugins for streaming file transformations
 - **Simple** - By providing only a minimal API surface, gulp is easy to learn and simple to use
 
 ## What's new in 4.0?!