fix typo

Author: Schweinepriester

README.md

@@ -2,7 +2,7 @@
 
 A collection listing all Achievements available on the GitHub profile.
 
-Following the launch of the first Mars Helicopter, [Ingenuity](https://en.wikipedia.org/wiki/Ingenuity_(helicopter)), GitHub [announched](https://github.blog/2021-04-19-open-source-goes-to-mars/) the new Achievements section:
+Following the launch of the first Mars Helicopter, [Ingenuity](https://en.wikipedia.org/wiki/Ingenuity_(helicopter)), GitHub [announced](https://github.blog/2021-04-19-open-source-goes-to-mars/) the new Achievements section:
 
 > We are also using this opportunity to introduce a new Achievements section to the GitHub profile. Right now, Achievements include the Mars 2020 Helicopter Mission badge, the [Arctic Code Vault](https://archiveprogram.github.com/arctic-vault/) badge, and a badge for sponsoring open source work via [GitHub Sponsors](https://github.com/sponsors).