terraform: add tf Alias (#8206)

plugins/terraform/README.md

@@ -2,7 +2,7 @@
 
 Plugin for Terraform, a tool from Hashicorp for managing infrastructure safely and efficiently.
 
-Current as of Terraform v0.11.7
+Current as of Terraform v0.13
 
 ### Requirements
 
@@ -17,6 +17,7 @@ plugins=(... terraform)
 ```
 
  * Type `terraform` into your prompt and hit `TAB` to see available completion options
+ * Type `tf` into your prompt as a short alias to `terraform`
 
 ### Expanding ZSH prompt with current Terraform workspace name
 

plugins/terraform/terraform.plugin.zsh

@@ -7,3 +7,5 @@ function tf_prompt_info() {
       echo "[${workspace}]"
     fi
 }
+
+alias tf='terraform'