am b2b841d: am 998234e: AI 147947: update the sitemap. add disallow in r

Merge commit 'b2b841db08057a6dbc86f99fd35106ed741da126'

* commit 'b2b841db08057a6dbc86f99fd35106ed741da126':
  AI 147947: update the sitemap. add disallow in robots file for the sdk/preview/