fix: resolve linting issues

- Remove unnecessary else block after return statement in handlers_users.go
- Fix dead link to root README.md by updating relative path

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Signed-off-by: Eric Searcy <eric@linuxfoundation.org>

Author: emsearcy

cmd/lfx-v1-sync-helper/README.md

@@ -13,7 +13,7 @@ The LFX v1 Sync Helper is a Go microservice that synchronizes v1 data from NATS
 
 ### Data Flow
 
-For a more detail view, see the root [README.md](../README.md) diagrams.
+For a more detail view, see the root [README.md](../../README.md) diagrams.
 
 ```mermaid
 flowchart LR

cmd/lfx-v1-sync-helper/handlers_users.go

@@ -154,12 +154,11 @@ func updateEmailsList(currentEmails []string, emailSfid string, isDeleted bool)
 		}
 		// Email not in list, nothing to remove.
 		return currentEmails
-	} else {
-		// Add to list if it doesn't exist.
-		if index == -1 {
-			return append(currentEmails, emailSfid)
-		}
-		// Email already in list, nothing to add.
-		return currentEmails
 	}
+	// Add to list if it doesn't exist.
+	if index == -1 {
+		return append(currentEmails, emailSfid)
+	}
+	// Email already in list, nothing to add.
+	return currentEmails
 }