Merge pull request #219 from exacaster/fix_misspelled_env_property

Fix misspelled property

docs/configuration.md

@@ -10,7 +10,7 @@ Lighter can be configured by using environment variables. Currently, Lighter sup
 | LIGHTER_SPARK_HISTORY_SERVER_URL       | Spark history server URL used on frontend                      | http://localhost/spark-history/ |
 | LIGHTER_EXTERNAL_LOGS_URL_TEMPLATE     | Template for link to external logs                             |                                 |
 | LIGHTER_PY_GATEWAY_PORT                | Port for live Spark session communication                      | 25333                           |
-| LIGHETR_URL                            | URL which can be used to access Lighter form Spark Job         | http://lighter.spark:8080       |
+| LIGHTER_URL                            | URL which can be used to access Lighter form Spark Job         | http://lighter.spark:8080       |
 | LIGHTER_SESSION_TIMEOUT_MINUTES        | Session lifetime in minutes                                    | 90                              |
 | LIGHTER_STORAGE_JDBC_URL               | JDBC url for lighter storage                                   | jdbc:h2:mem:lighter             |
 | LIGHTER_STORAGE_JDBC_USERNAME          | JDBC username                                                  | sa                              |
@@ -44,4 +44,4 @@ Example of `LIGHTER_BATCH_DEFAULT_CONF`: `{"spark.kubernetes.driverEnv.TEST1":"t
 | LIGHTER_YARN_KERBEROS_KEYTAB    | Kerberos keytab used for job management                           |                                   |
 
 <sup>*</sup> Principal & Keytab provided in `LIGHTER_YARN_KERBEROS_PRINCIPAL` and `LIGHTER_YARN_KERBEROS_KEYTAB` will be used by spark job
-as well, if `spark.kerberos.keytab` is not explicitly declared in `LIGHTER_BATCH_DEFAULT_CONF` or provided on submit request.
+as well, if `spark.kerberos.keytab` is not explicitly declared in `LIGHTER_BATCH_DEFAULT_CONF` or provided on submit request.