Review FirebaseStorage non-source files (#13375)

Author: MojtabaHs

FirebaseStorage/CHANGELOG.md

@@ -125,13 +125,13 @@
 - [changed] Reorganized directory structure (#4573).
 
 # 3.4.2
-- [fixed] Internal changes to addres -Wunused-property-ivar violation (#4281).
+- [fixed] Internal changes to address -Wunused-property-ivar violation (#4281).
 
 # 3.4.1
 - [fixed] Fix crash in FIRStorageUploadTask (#3750).
 
 # 3.4.0
-- [fixed] Ensure that users don't accidently invoke `Storage()` instead of `Storage.storage()`.
+- [fixed] Ensure that users don't accidentally invoke `Storage()` instead of `Storage.storage()`.
   If your code calls the constructor of Storage directly, we will throw an assertion failure,
   instead of crashing the process later as the instance is used (#3282).