HPCC-9642 Update Tech Preview docs

Fix HPCC-9642 Update Tech Preview docs
Update documentation for ECL Watch
Tech. Preview docs to reflect the latest
design changes with the ECL Watch site.

Signed-off-by: g-pan <greg.panagiotatos@lexisnexis.com>

HPCC-9642 Update Tech Preview docs

Fix HPCC-9642 Update Tech Preview docs
Update documentation for ECL Watch
Tech. Preview docs to reflect the latest
design changes with the ECL Watch site.

Signed-off-by: g-pan <greg.panagiotatos@lexisnexis.com>