Adding example for azure tags

Author: dewhurstwill

terraform.tfvars.example

@@ -3,3 +3,10 @@ lm_access_id='<LM access ID>'
 lm_access_key='<LM access key>'
 
 azure_region='<region>'
+
+tags = {
+  Application = "LM Logs Bets"
+  Environment = "Production/Test/Dev"
+  Criticality = "Tier 1/Tier 2/Tier 3"
+  Owner       = "Team Name"
+}