Clarify comments to match practice

Signed-off-by: Bridget Kromhout <bridget@kromhout.org>

internal/version/version.go

@@ -25,11 +25,9 @@ import (
 var (
 	// version is the current version of Helm.
 	// Update this whenever making a new release.
-	// The version is of the format Major.Minor.Patch[-Prerelease][+BuildMetadata]
 	//
 	// Increment major number for new feature additions and behavioral changes.
 	// Increment minor number for bug fixes and performance enhancements.
-	// Increment patch number for critical fixes to existing releases.
 	version = "v3.3"
 
 	// metadata is extra build time data