### What problem does this PR solve?
_Briefly describe what this PR aims to solve. Include background context
that will help reviewers understand the purpose of the PR._
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
- [x] Documentation Update
---------
Signed-off-by: Jin Hai <haijin.chn@gmail.com>
### What problem does this PR solve?
- Create a text2sql agent document: Receipe, procedure, debug (
including step run), run.
### Type of change
- [ ] Documentation Update
---------
Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>
writinwaters
Jin Hai
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