HPCC-11780 DOCS:Update ECL Playground for ECL Watch 5.0

Fix HPCC-11780 DOCS:Update ECL Playground for ECL Watch 5.0
Update images and  language to
descibe the ECL Playground in ECL Watch 5.0

Signed-off-by: g-pan <greg.panagiotatos@lexisnexis.com>
HPCC-11780 DOCS:Update ECL Playground for ECL Watch 5.0

Fix HPCC-11780 DOCS:Update ECL Playground for ECL Watch 5.0
Update images and  language to
descibe the ECL Playground in ECL Watch 5.0

Signed-off-by: g-pan <greg.panagiotatos@lexisnexis.com>
Merge pull request #6131 from g-pan/H11780-SchedDoc

HPCC-11780 DOCS:Update ECL Playground for ECL Watch 5.0

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>