Update pw-env-var.md (#1168)

Typo in the export command results in the command not working as
written. Needs a space between export and the variable.



![ElasticSupport 2025-04-16 at 09 23
36](https://github.com/user-attachments/assets/f4dc94e7-6cb6-4e95-a4ab-ec84d763d9f2)

Co-authored-by: Liam Thompson <[email protected]>

Author: ZachBrisson-Elastic

deploy-manage/deploy/self-managed/_snippets/pw-env-var.md

@@ -1,9 +1,9 @@
 We recommend storing the `elastic` password as an environment variable in your shell. For example:
 
 ```sh subs=true
-{{export}}ELASTIC_PASSWORD="your_password"
+{{export}} ELASTIC_PASSWORD="your_password"
 ```
 
 If you have password-protected the {{es}} keystore, you will be prompted to enter the keystore’s password. See [Secure settings](/deploy-manage/security/secure-settings.md) for more details.
 
-To learn how to reset this password, refer to [](/deploy-manage/users-roles/cluster-or-deployment-auth/built-in-sm.md).
+To learn how to reset this password, refer to [](/deploy-manage/users-roles/cluster-or-deployment-auth/built-in-sm.md).