added extra_tags variable for custom tags

Author: bobbysinghh

_example/memcached/example.tf

@@ -62,7 +62,7 @@ module "memcached" {
   subnet_ids           = module.subnets.public_subnet_id
   security_group_ids   = [module.memcached-sg.security_group_ids]
   availability_zones   = ["eu-west-1a", "eu-west-1b"]
-  tags = {
-    org = "test"
+  extra_tags = {
+    Application = "CloudDrove"
   }
 }

_example/redis-cluster/example.tf

@@ -61,7 +61,7 @@ module "redis-cluster" {
   replicas_per_node_group     = 2
   num_node_groups             = 1
   automatic_failover_enabled  = true
-  tags = {
-    org = "test"
+  extra_tags = {
+    Application = "CloudDrove"
   }
 }

_example/redis/example.tf

@@ -58,7 +58,7 @@ module "redis" {
   availability_zones         = ["eu-west-1a", "eu-west-1b"]
   auto_minor_version_upgrade = true
   number_cache_clusters      = 2
-  tags = {
-    org = "test"
+  extra_tags = {
+    Application = "CloudDrove"
   }
 }