refactor: add tags section and improve clarity in deployment instructions

Author: madeline-underwood

content/learning-paths/servers-and-cloud-computing/redis-cobalt/_index.md

@@ -20,6 +20,7 @@ prerequisites:
 
 author: Pareena Verma
 
+### Tags
 ### Tags
 skilllevels: Introductory
 subjects: Databases

content/learning-paths/servers-and-cloud-computing/redis-cobalt/deploy-redis-cobalt.md

@@ -149,7 +149,7 @@ The output is similar to:
 3) "Hello from Cobalt Arm!"
 ```
 
-This demonstrates real-time message delivery.
+The output demonstrates real-time message delivery.
 
 ## Build an event pipeline using Redis Streams