Update docs/blog/_posts/2020-12-18-scala3-m3.md

Co-authored-by: Sébastien Doeraene <[email protected]>

Author: anatoliykmetyuk

docs/blog/_posts/2020-12-18-scala3-m3.md

@@ -149,7 +149,7 @@ Note the difference from the Scala 2 scripting implementation. In Scala 2, we do
 The documentation for this feature is available [here](https://dotty.epfl.ch/docs/usage/getting-started.html#scala-3-for-scripting).
 
 # Metaprogramming changes
-Metaprogramming-wise, the majority of work is focused on polishing the API and making it more uniform. The following notable metaprogramming API changes occurred between M2 and M3:
+We have been polishing the metaprogramming API and making it more uniform. The following notable changes occurred between M2 and M3:
 
 - Add `Expr.asTerm` [#10694](https://github.com/lampepfl/dotty/pull/10694)
 - Add reflect `MatchCase` `TypeRepr` [#10735](https://github.com/lampepfl/dotty/pull/10735)