[Feature] Add a tutorial running on colab

[JingweiZhang12]

No description provided.

[codecov]

Codecov Report

Merging #511 (ba4f17b) into master (371247b) will decrease coverage by 0.12%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #511      +/-   ##
==========================================
- Coverage   73.41%   73.29%   -0.13%     
==========================================
  Files         126      126              
  Lines        7370     7370              
  Branches     1380     1380              
==========================================
- Hits         5411     5402       -9     
- Misses       1537     1543       +6     
- Partials      422      425       +3     

Flag	Coverage Δ
unittests	73.21% <ø> (-0.14%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
mmtrack/datasets/pipelines/transforms.py	86.69% <0.00%> (-3.67%)	⬇️
mmtrack/models/trackers/base_tracker.py	86.25% <0.00%> (+1.52%)	⬆️
mmtrack/models/sot/siamrpn.py	81.56% <0.00%> (+1.67%)	⬆️
mmtrack/models/reid/base_reid.py	86.95% <0.00%> (+8.69%)	⬆️

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[GT9505]

There is a mismatch between config and model.
And remember to clear the log information

[GT9505]

delete pdb