Update README.md

Author: hegyibalint

README.md

@@ -54,7 +54,7 @@ docker run --rm --mount type=bind,source="$(pwd)/datagen_output/",target="/opt/l
 ### Options
 
 The container image can be customized with environment variables passed through the `docker run` command. The following options are present:
-  * `HADOOP_CLIENT_OPTS`: A standard HADOOP environment variable controlling the Hadoop client parameters. Default is `-Xmx8G` to provide the client enough heap.
+  * `HADOOP_CLIENT_OPTS`: A standard Hadoop environment variable controlling the Hadoop client parameters. Default is `-Xmx8G` to provide the client enough heap.
   * `DATAGEN_SCALE_FACTOR`: The scale factor of the generated dataset. Default is `snb.interactive.1`
   * `DATAGEN_PERSON_SERIALIZER`: The serializer used for Person objects. Default is `ldbc.snb.datagen.serializer.snb.interactive.CSVPersonSerializer`
   * `DATAGEN_INVARIANT_SERIALIZER` The serializer used for Invariant objects. Default is `ldbc.snb.datagen.serializer.snb.interactive.CSVInvariantSerializer`