Fix patch/major instructions. (#7059)

* Fix patch/major instructions.

* Consistency across docs

AppleSilicon.md

@@ -18,15 +18,15 @@ When specifying which version of Firebase you'd like in your Podfile, append `-M
 See the following examples:
 
 ```
-# Explicitly require the special `M1` tagged Firebase version.
-pod 'Firebase/Analytics', '~> 7.2.0-M1'
+# Explicitly require the special `M1` tagged Firebase version, locked to the major version.
+pod 'Firebase/Analytics', '~> 7.2-M1'
 
 # Do the same for any other Firebase pod used.
-pod 'Firebase/Database', '~> 7.2.0-M1'
+pod 'Firebase/Database', '~> 7.2-M1'
 
-# You can also lock on the minor or major versions like so:
-pod 'Firebase/Analytics, '~> 7.2-M1'
-pod 'Firebase/Analytics, '~> 7-M1'
+# You can also lock on the minor or patch versions like so:
+pod 'Firebase/Analytics, '~> 7.2.0-M1'
+pod 'Firebase/Analytics, '7.2.0-M1'
 ```
 
 The CocoaPods issue has been fixed in