made small edits to release blog (microsoft#8289)

anzhou5 · web-flow · commit 5ea3bf87f0bb · 2021-07-12T14:38:46.000-07:00
* made small edits to release blog

* missed 1 place for the date. Fixed it here

* removed vaccines here as well

* removed vaccines in blog
diff --git a/docs/blog.md b/docs/blog.md
@@ -2,9 +2,9 @@
 
 ## [MakeCode for the micro:bit - 2021 Release is here!](/blog/microbit/2021-release)
 
-June 25th, 2021 by [Jaqster](https://github.com/jaqster)
+July 12th, 2021 by [Jaqster](https://github.com/jaqster)
 
-Phew! We made it through a crazy remote/hybrid school year! Now, with summer weather + vaccines + the 2021 updates to MakeCode for the micro:bit, things are starting to look up!
+Phew! We made it through a crazy remote/hybrid school year! Now, with summer weather + the 2021 updates to MakeCode for the micro:bit, things are starting to look up!
 
 **[Continue reading this blog post](/blog/microbit/2021-release)**
 
