Update README with instructions for adapting model configuration to new class names

Author: Flova

README.md

@@ -70,6 +70,14 @@ You can adjust the log directory using `--logdir <path>` when running `tensorboa
 #### Classes
 Add class names to `data/custom/yoeo_names.yaml`.
 
+Run the following command to adapt the model file (cfg) to the new number of classes:
+
+```bash
+poetry run yoeo-custiomize-cfg -c config/yoeo.cfg -d config/custom.data -o config/yoeo-custom.cfg
+```
+
+This changes the layers of the model to fit the number of classes in your dataset.
+
 #### Image Folder
 Move the images of your dataset to `data/custom/images/`.