style(nyz): polish model template comments

[PaParaZz1]

Description

Related Issue

TODO

Check List

• merge the latest version source branch/repo, and resolve all the conflicts
• pass style check
• pass all the tests

[codecov]

Codecov Report

Merging #722 (270abc0) into main (3059479) will decrease coverage by 0.78%.
Report is 8 commits behind head on main.
The diff coverage is 66.51%.

@@            Coverage Diff             @@
##             main     #722      +/-   ##
==========================================
- Coverage   80.68%   79.90%   -0.78%     
==========================================
  Files         598      599       +1     
  Lines       50116    49531     -585     
==========================================
- Hits        40434    39578     -856     
- Misses       9682     9953     +271     

Flag	Coverage Δ
unittests	79.90% <66.51%> (-0.78%)	⬇️

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

Files Changed	Coverage Δ
ding/entry/__init__.py	100.00% <ø> (ø)
ding/envs/env_manager/__init__.py	100.00% <ø> (ø)
ding/model/common/head.py	95.51% <ø> (+0.30%)	⬆️
ding/model/template/bc.py	94.23% <ø> (ø)
ding/policy/dqn.py	80.21% <ø> (ø)
ding/policy/td3_vae.py	13.27% <0.00%> (ø)
ding/torch_utils/__init__.py	100.00% <ø> (ø)
ding/policy/prompt_pg.py	25.00% <25.00%> (ø)
.../model/template/tests/test_language_transformer.py	26.66% <26.66%> (ø)
ding/model/template/language_transformer.py	29.41% <29.41%> (ø)
... and 34 more

... and 221 files with indirect coverage changes