[DOCS] Possible typo Apache Spark vs. Apache Storm

[lukas-vlcek]

May be it is just a typo, but why the first paragraph here refers to Apache Spark while it is inside Apache Storm part?
https://www.elastic.co/guide/en/elasticsearch/hadoop/current/requirements.html#requirements-storm

[girirajsharma]

The following PR elastic/elasticsearch-hadoop#588 fixes above issue.

[clintongormley]

This issue was moved to elastic/elasticsearch-hadoop#600