Update tests.md (Azure#22500)

* Update tests.md

* oops 5 back to 4

doc/dev/tests.md

@@ -162,7 +162,7 @@ If your library has a management plane library, you can build a preparer specifi
 
 1. Create an Azure Resource Management Template for your specific service and the configuration you need. This can be done in the portal by creating the resources and at the very last step (Review + Create) clicking "Download a template for automation". Save this template to a `test-resources.json` file under the directory that contains your library (`sdk/<my-library>/test-resources.json`).
 2. Use the [`New-TestResources.ps1`](https://github.com/Azure/azure-sdk-for-python/tree/main/eng/common/TestResources#on-the-desktop) script to deploy those resources.
-3. Set the environment variables returned from step 2 in your current shell or add them to your `.env` file at the root of the repo to save these secrets. If you choose the latter method, you will have to make sure all the key-value pairs are in the format `<key_name>=<value>`, rather than the  `${env:<key_name>} = '<value>'` formatting used in PowerShell. The names of the environment variables should be in all capital letters, snake case, and be prefixed with the library name. Ie. `TABLES_PRIMARY_KEY`, `FORMRECOGNIZER_ACCOUNT_URL`, `EVENTHUBS_SECRET_KEY`.
+3. Set the environment variables returned from step 2 in your current shell or add them to your `.env` file at the root of the repo to save these secrets. If you choose the latter method, you will have to make sure all the key-value pairs are in the format `<key_name>=<value>`, rather than the  `${env:<key_name>} = '<value>'` formatting used in PowerShell. The names of the environment variables should be in all capital letters, snake case, and be prefixed with the library name. Ie. `TABLES_PRIMARY_KEY`, `FORMRECOGNIZER_ACCOUNT_URL`, `EVENTHUBS_SECRET_KEY`. If the name of the service is more than one word, like Form Recognizer, don't include an underscore between the words. Use `FORMRECOGNIZER_ACCOUNT_URL`, not `FORM_RECOGNIZER_ACCOUNT_URL`.
 4. Create a partial implementation of the PowerShellPreparer to pass in your specific environment variables. An example implementation is shown below for schemaregistry
 
 ```python