[FLINK-18913] Add a "TableEnvironment" document under the "Python API" -> "User Guide" -> "Table API" section

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.11.2, 1.12.0
• Component/s: API / Python, Documentation
• Labels: pull-request-available
• Assignee: Wei Zhong
• Reporter: Wei Zhong
• Created: 13/Aug/20 03:49
• Updated: 08/Sep/20 03:01
• Resolved: 08/Sep/20 03:01

Issue Links

• links to: GitHub Pull Request #13314