[SPARK-35647] Merge contents and remove obsolete pages in User Guide section

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.2.0
• Fix Version/s: 3.2.0
• Component/s: PySpark
• Assignee: Hyukjin Kwon
• Reporter: Hyukjin Kwon
• Created: 04/Jun/21 04:08
• Updated: 12/Dec/22 18:10
• Resolved: 09/Jun/21 03:13

Description

Now Koalas documentation is in PySpark documentations. We should probably now remove obsolete pages such as blog post and talks. Also, we should refine and merge contents properly.

Issue Links

• links to: [Github] Pull Request #32817 (pingsutw)
• links to: [Github] Pull Request #32820 (HyukjinKwon)