docs: Improve workaround

Relates: #203

README.md

@@ -314,10 +314,17 @@ Example:
         - --envs=AWS_SECRET_ACCESS_KEY="asecretkey"
     ```
 
-3. It may happen that Terraform working directory (`.terraform`) already exists but not in the best condition (eg, not initialized modules, wrong version of Terraform, etc). To solve this problem you can find and delete all `.terraform` directories in your repository using this command:
+3. It may happen that Terraform working directory (`.terraform`) already exists but not in the best condition (eg, not initialized modules, wrong version of Terraform, etc). To solve this problem you can find and delete all `.terraform` directories in your repository:
 
-    ```shell
-    find . -type d -name ".terraform" -print0 | xargs -0 rm -r
+    ```bash
+    echo "
+    function rm_terraform {
+        find . -name ".terraform*" -print0 | xargs -0 rm -r
+    }
+    alias rmtf=rm_terraform
+    " >>~/.bashrc
+
+    # Reload shell and use `rmtf` command in repo root
     ```
 
    `terraform_validate` hook will try to reinitialize them before running `terraform validate` command.