Update SKILL.md

Author: twishabansal

skills/cloud-sql-postgres-vectorassist/SKILL.md

@@ -1,6 +1,6 @@
 ---
 name: cloud-sql-postgres-vectorassist
-description: Use these skills to set up and optimize production-ready vector workloads by simply expressing your intent and performance requirements
+description: Use these skills to set up and optimize production-ready vector workloads by simply expressing your intent and performance requirements.
 ---
 
 ## Usage