IDE-379 Update Graph Image in CT manual

Signed-off-by: Jim DeFabia <jamesdefabia@lexisnexis.com>
Merge pull request #6348 from JamesDeFabia/IDE379UpdateGraphImage

IDE-379 Update Graph Image in CT manual

Reviewed-By: Gordon Smith <gordon.smith@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>