Clarify this only happens with native arm64/aarch64 pyenv installs, which are the default. There's are suggestions online to use Rosetta2 x86 emulation which is duck tape and slower.

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Author: fredvd

docs/contributing/setup-build.md

@@ -42,7 +42,7 @@ make html
 
 ```{note}
 If you are using an M1 Mac to build the documentation, there is currently [an issue with pyenchant](https://github.com/pyenchant/pyenchant/issues/265) that throws an error that the enchant library can't be found.
-This happens for example if you installed your Python with pyenv. 
+This happens for example if you install Python 3 with `pyenv` in the default M1 architecture (aarch64), so without following instructions to use Rosetta2 x86 emulation.
 A workaround until pyenchant is fixed is to run `export PYENCHANT_LIBRARY_PATH=/opt/homebrew/lib/libenchant-2.dylib` in the terminal session before you execute `make html`.
 ```