Fix typo in announcement blog post

Closes GH-2381.

Reviewed-by: Titus Wormer <[email protected]>

Author: rijkvanzanten

docs/blog/v3.mdx

@@ -99,7 +99,7 @@ Updating every use example where needed.
 I also wrote a guide on how to inject components from anywhere:
 [§ Injecting components][injecting-components].
 
-The site a bunch faster.
+The site is a lot faster.
 There’s a nice improved playground too: [try it out! »][playground].
 We also have proper syntax highlighting here, thanks to
 [`wooorm/markdown-tm-language`][markdown-tm-language]