Update env_variables.md

docs/install/install-redisinsight/env_variables.md

@@ -15,6 +15,6 @@ You can configure RedisInsight with the following environment variables.
 | RI_SERVER_TLS_KEY | Private key for HTTPS | n/a | Private key in [PEM format](https://www.ssl.com/guide/pem-der-crt-and-cer-x-509-encodings-and-conversions/#ftoc-heading-3). May be a path to a file or a string in PEM format.|
 | RI_SERVER_TLS_CERT | Certificate for supplied private key | n/a | Public certificate in [PEM format](https://www.ssl.com/guide/pem-der-crt-and-cer-x-509-encodings-and-conversions/#ftoc-heading-3)|
 | RI_ENCRYPTION_KEY | Key to encrypt data with | n/a | Redisinsight stores sensitive information (database passwords, Workbench history, etc.) locally (using [sqlite3](https://github.com/TryGhost/node-sqlite3)). This variable allows to store sensitive information encrypted using the specified encryption key. <br /> `Note:` Securely store the specified encryption key to be able to provide it in the future (e.g. during the startup process), otherwise RedisInsight will not be able to decrypt the information. |
-| RI_LOG_LEVEL | Configures the log level of the application. Possible values are - `"DEBUG"`, `"INFO"`, `"WARNING"`, `"ERROR`" and `"CRITICAL"`. | `INFO` | |
-| RI_FILES_LOGGER | Log to file | 'true' | |
-| RI_STDOUT_LOGGER | Log to STDOUT | 'true' | |
+| RI_LOG_LEVEL | Configures the log level of the application. | `INFO` | Possible values are: <br>`"DEBUG"` <br> `"INFO"` <br> `"WARNING"` <br> `"ERROR"` <br>`"CRITICAL"` |
+| RI_FILES_LOGGER | Log to file | `true` | |
+| RI_STDOUT_LOGGER | Log to STDOUT | `true` | |