update wiki about tispark version

[shawn0915]

General Question

hi team, when you have time, could you update the version info in wiki? like add tispark 3.2.x, tidb 7.x

https://github.com/pingcap/tispark/wiki/Getting-TiSpark#getting-mysql-connector-j

[shawn0915]

and, could you update the wiki homepage, that link is dead 404.
https://github.com/pingcap/tispark/wiki

[github-actions]

This issue is stale because it has been open for 30 days with no activity.

[github-actions]

This issue was closed because it has been inactive for 14 days since being marked as stale.