Fix README.md installation for zsh (#478)

Groverkss · web-flow · commit 04c1a01624a5 · 2024-02-24T09:29:43.000-08:00
zsh uses square brackets for pattern matching which means that if you
need to pass literal square brackets as an argument to a command, you
either need to escape them or quote the arguments.
diff --git a/README.md b/README.md
@@ -88,7 +88,7 @@ Installing into a venv is highly recommended.
 
 ```
 pip install --upgrade -r core/requirements.txt
-pip install --upgrade -e core[torch-cpu-nightly,testing]
+pip install --upgrade -e "core[torch-cpu-nightly,testing]"
 ```
 
 Run tests:
