Added Create quickstart

Author: yegu

articles/azure-cache-for-redis/TOC.yml

@@ -9,6 +9,8 @@
   items:
   - name: Create a cache
     items:
+    - name: Basic, Standard and Premium tiers
+      href: quickstart-create-redis.md
     - name: Enterprise tiers
       href: quickstart-create-redis-enterprise.md
   - name: Use a cache