README: added pyinstaller command for mac osx (#147)

docs/create_executable.md

@@ -32,5 +32,25 @@ The executable files can be found under the folder `dist`.
 ToDo
 
 ## Mac
+Follow these steps to generate the executable for Mac.
 
-ToDo
+1. Run these commands
+
+```
+cd path/to/dot
+conda activate dot
+```
+
+2. Get the path of the `site-packages` by running this command
+
+```
+python -c "import site; print(''.join(site.getsitepackages()))"
+```
+
+3. Replace `path/to/site-packages` with the path of the `site-packages` and run this comman
+
+```
+pyinstaller --noconfirm --onedir --name "dot" --add-data "src/dot/fomm/config:dot/fomm/config" --add-data "src/dot/simswap/models:dot/simswap/models" --add-data "path/to/site-packages:." --add-data "configs:configs/" --add-data "data:data/" --add-data "saved_models:saved_models/" src/dot/ui/ui.py
+```
+
+The executable files can be found under the folder `dist`.