DOC: Improve links and fix issues on resample documentation page

[bharatr21]

• closes Links on resample documentation page are broken #26275
• tests added / passed
• passes git diff upstream/master -u -- "*.py" | flake8 --diff
• whatsnew entry (Not required IMO)

[codecov]

Codecov Report

Merging #26306 into master will decrease coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #26306      +/-   ##
==========================================
- Coverage   92.04%   92.03%   -0.01%     
==========================================
  Files         175      175              
  Lines       52302    52302              
==========================================
- Hits        48142    48138       -4     
- Misses       4160     4164       +4

Flag	Coverage Δ
#multiple	90.59% <ø> (ø)	⬆️
#single	40.72% <ø> (-0.18%)	⬇️

Impacted Files	Coverage Δ
pandas/core/generic.py	93.57% <ø> (ø)	⬆️
pandas/io/gbq.py	78.94% <0%> (-10.53%)	⬇️
pandas/core/frame.py	97.01% <0%> (-0.12%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 20fa58d...6458161. Read the comment docs.

[jreback]

small comment, otherwise lgtm. ping on green.

[bharatr21]

The error is AttributeError: type object 'DataFrame' has no attribute 'to_panel' which seems to be unrelated to the current PR. @jreback Any suggestions?

[WillAyd]

@Bharat123rox I think #26308 will resolve that so can just merge master here after that goes in

[bharatr21]

Ping @jreback to review

[jreback]

thanks @Bharat123rox