HPCC-11403 DOCS:Footer in Installing and Running

Fix HPCC-11403 DOCS:Footer in Installing and Running
Fixing Text spilling into footer of
the Installing and Running HPCC document.

Signed-off-by: g-pan <greg.panagiotatos@lexisnexis.com>
Merge pull request #5892 from g-pan/H11403-InRFooter

HPCC-11403 DOCS:Footer in Installing and Running

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>