In ZSH, not using ' ' around pip install fails
Running
```
pip install transformers[torch]
```
in the default ZSH terminal will fail with the error `zsh: no matches found: transformers[torch]`
The solution is to wrap the installation path in ' ' like
```
pip install 'transformers[torch]'
```
Relevant StackOverflow: https://stackoverflow.com/questions/30539798/zsh-no-matches-found-requestssecurity
