Apply suggestions to 3.0.2 announcement

Co-authored-by: Julien Richard-Foy <julien@richard-foy.fr>

Author: Kordyjan

blog/_posts/2021-09-02-scala-3.0.2-released.md

@@ -5,7 +5,7 @@ by: Paweł Marks, VirtusLab
 title: Scala 3.0.2 released!
 ---
 
-Greetings from the Scala 3 team! We are glad to announce that Scala 3.0.2 is now officially out. As no critical bugs have been found in the previously released Scala 3.0.2-RC2, it has been promoted to 3.0.2 and is the current stable scala version.
+Greetings from the Scala 3 team! We are glad to announce that Scala 3.0.2 is now officially out. As no critical bugs have been found in the previously released Scala 3.0.2-RC2, it has been promoted to 3.0.2 and is the current stable Scala version.
 Recently, we are more and more confident that we can release stable versions of the compiler frequently and regularly. So, we have decided that the blog posts should focus more on stable features available for all users in the latest release of scala. So here, as a refresher, you have a summary of the most significant changes introduced in 3.0.2.
 
 ## What's new in 3.0.2
@@ -53,7 +53,7 @@ The compiler option `-Yexplicit-nulls` modifies Scala's standard type hierarchy
 After the recently introduced changes with this option enabled the `Null` type becomes a subtype of `Matchable` instead of inheriting directly from `Any`, making the code below compile (this used to compile before only without strict nullability checking).
 
 ```scala
-def foo[T <: Matchable](t: T) = t match { case null => () }
+def foo(x: Matchable) = x match { case null => () }
 ```
 
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