Added MacOS usage instructions

README.md

@@ -4,7 +4,7 @@ Remove comments from source files.
 
 **Disclaimer: This software is not extensively tested so should only be used used for testing right now**
 
-## Installation and use
+## Installation instructions (Linux and MacOS)
 
 This is how I would install and use this, I haven't spent any time to package it properly.
 
@@ -18,14 +18,20 @@ Make the draincleaner.py executable
 $ chmod +x draincleaner.py
 ```
 
-In your .bashrc file add the following, but change path to your draincleaner directory:
+In your .bashrc file located in your users home directory (on MacOS it's the .zshrc file in /Users/user/) add the following:
+
 ```bash
 draincleaner() {
 	/path/to/draincleaner.py "$@"
 }
 ```
+change the path to point to the directory where draincleaner is located.
 
-Done. Now you can run it anywhere by typing:
+Done. Now you can run it anywhere from your terminal by typing:
 ```
 $ draincleaner
-```
+```
+
+# Known issues
+
+* --show-strings fails to detect and print f-strings.

draincleaner.py

@@ -1,5 +1,4 @@
 #!/usr/bin/env python3
-
 from argparse import ArgumentParser
 from pathlib import Path
 import pathspec # use this for git style ignore