DOC: fix a few typos

[ocefpaf]

Really minor PR that only fixes a few typos. Feel free to close it if you don't think this is necessary.

[codecov]

Codecov Report

Merging #1153 (37e93ab) into main (e88393c) will decrease coverage by 0.06%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1153      +/-   ##
==========================================
- Coverage   96.25%   96.18%   -0.07%     
==========================================
  Files          20       18       -2     
  Lines        1788     1703      -85     
==========================================
- Hits         1721     1638      -83     
+ Misses         67       65       -2     

Impacted Files	Coverage Δ
pyproj/crs/_cf1x8.py	97.38% <ø> (ø)
pyproj/crs/crs.py	98.05% <ø> (ø)
pyproj/exceptions.py	100.00% <ø> (ø)
pyproj/network.py	100.00% <ø> (ø)
pyproj/transformer.py	94.95% <ø> (ø)
pyproj/utils.py	82.81% <ø> (ø)
pyproj/enums.py
pyproj/__init__.py

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[snowman2]

Thanks @ocefpaf 👍