Add PT021, PT022 and PT023 docs

[harupy]

Summary

#2646

Test Plan

[github-actions]

PR Check Results

Ecosystem

✅ ecosystem check detected no changes.

Benchmark

Linux

group                                      main                                   pr
-----                                      ----                                   --
formatter/large/dataset.py                 1.00     11.0±0.32ms     3.7 MB/sec    1.06     11.6±0.31ms     3.5 MB/sec
formatter/numpy/ctypeslib.py               1.00      2.2±0.09ms     7.7 MB/sec    1.03      2.2±0.10ms     7.5 MB/sec
formatter/numpy/globals.py                 1.00    235.7±9.58µs    12.5 MB/sec    1.04   244.9±11.20µs    12.0 MB/sec
formatter/pydantic/types.py                1.00      4.5±0.16ms     5.6 MB/sec    1.07      4.8±0.18ms     5.3 MB/sec
linter/all-rules/large/dataset.py          1.00     14.9±0.45ms     2.7 MB/sec    1.05     15.6±0.36ms     2.6 MB/sec
linter/all-rules/numpy/ctypeslib.py        1.00      3.6±0.14ms     4.6 MB/sec    1.04      3.8±0.11ms     4.4 MB/sec
linter/all-rules/numpy/globals.py          1.00   514.5±26.08µs     5.7 MB/sec    1.03   527.6±20.71µs     5.6 MB/sec
linter/all-rules/pydantic/types.py         1.00      6.4±0.26ms     4.0 MB/sec    1.06      6.8±0.14ms     3.8 MB/sec
linter/default-rules/large/dataset.py      1.00      8.0±0.28ms     5.1 MB/sec    1.02      8.2±0.16ms     5.0 MB/sec
linter/default-rules/numpy/ctypeslib.py    1.00  1654.4±47.27µs    10.1 MB/sec    1.01  1667.8±53.32µs    10.0 MB/sec
linter/default-rules/numpy/globals.py      1.02    194.2±7.59µs    15.2 MB/sec    1.00    190.7±6.47µs    15.5 MB/sec
linter/default-rules/pydantic/types.py     1.00      3.6±0.11ms     7.1 MB/sec    1.00      3.6±0.07ms     7.1 MB/sec

Windows

group                                      main                                   pr
-----                                      ----                                   --
formatter/large/dataset.py                 1.00     13.6±0.30ms     3.0 MB/sec    1.01     13.8±0.42ms     3.0 MB/sec
formatter/numpy/ctypeslib.py               1.00      2.6±0.08ms     6.5 MB/sec    1.00      2.6±0.08ms     6.4 MB/sec
formatter/numpy/globals.py                 1.00   286.4±18.21µs    10.3 MB/sec    1.00   286.8±14.25µs    10.3 MB/sec
formatter/pydantic/types.py                1.00      5.7±0.21ms     4.5 MB/sec    1.00      5.7±0.21ms     4.5 MB/sec
linter/all-rules/large/dataset.py          1.00     19.0±0.37ms     2.1 MB/sec    1.00     19.1±0.43ms     2.1 MB/sec
linter/all-rules/numpy/ctypeslib.py        1.00      4.8±0.13ms     3.5 MB/sec    1.01      4.9±0.15ms     3.4 MB/sec
linter/all-rules/numpy/globals.py          1.00   597.0±33.19µs     4.9 MB/sec    1.00   594.9±18.92µs     5.0 MB/sec
linter/all-rules/pydantic/types.py         1.00      8.4±0.22ms     3.0 MB/sec    1.01      8.5±0.27ms     3.0 MB/sec
linter/default-rules/large/dataset.py      1.01     10.6±0.26ms     3.8 MB/sec    1.00     10.6±0.20ms     3.9 MB/sec
linter/default-rules/numpy/ctypeslib.py    1.00      2.1±0.06ms     8.0 MB/sec    1.01      2.1±0.05ms     7.9 MB/sec
linter/default-rules/numpy/globals.py      1.00   246.2±12.39µs    12.0 MB/sec    1.01    248.5±9.70µs    11.9 MB/sec
linter/default-rules/pydantic/types.py     1.00      4.5±0.14ms     5.6 MB/sec    1.01      4.6±0.15ms     5.6 MB/sec