Fix typos in review

Author: blyxyas

.github/PULL_REQUEST_TEMPLATE.md

@@ -32,7 +32,7 @@ order to get feedback.
 
 Delete this line and everything above before opening your PR.
 
-Note taht we are currently not taking in new PRs that add new lints. We are in a
+Note that we are currently not taking in new PRs that add new lints. We are in a
 feature freeze. Check out the book for more information. If you open a
 feature-adding pull request, its review will be delayed.
 

book/src/development/feature_freeze.md

@@ -3,7 +3,7 @@
 This is a temporary notice.
 
 From May 9th, 2025 until the 1st of August, 2025 we will perform a feature freeze. Only bugfix PRs will be reviewed
-with the exception of already open ones. Every feature-adding PR open in between those dates will be moved into a
+with the exception of already open ones. Every feature-adding PR opened in between those dates will be moved into a
 milestone to be reviewed separately at another time.
 
 We do this because of the long backlog of bugs that need to be addressed