Merge pull request #6 from PPeltzerFka/main

Escaped Environment Variables in 'echo ... >> ~/.bashrc' command hinted in README

README.md

@@ -66,7 +66,7 @@ source $(activate-python-docker-run-shell-completion 2> /dev/null)
 > **Warning**  
 > Outside of a virtual environment, *pip* may default to a user-site installation of executables to `~/.local/bin`, which may not be present in your shell's `PATH`.  If running `docker-run` errors with `docker-run: command not found`, add the directory to your path. [*(More information)*](https://packaging.python.org/en/latest/tutorials/installing-packages/#installing-to-the-user-site)  
 > ```bash
-> echo "export PATH=$HOME/.local/bin:$PATH" >> ~/.bashrc
+> echo "export PATH=\$HOME/.local/bin:\$PATH" >> ~/.bashrc
 > source ~/.bashrc
 > ```