update readme with model name and demo information

README.md

@@ -42,11 +42,11 @@ To be also configurable.
 ### Model Sources 
 
 - **Repository:** [https://github.com/rootstrap/fastai-waste-classifier](https://github.com/rootstrap/fastai-waste-classifier)
-- **Demo [optional]:** [TODO]()
+- **Demo [optional]:** [https://huggingface.co/spaces/rootstrap-org/waste-classifier](https://huggingface.co/spaces/rootstrap-org/waste-classifier)
 
 ## Uses
 
-At Rootstrap we classify waste. We found that people were straggled to classify correctly, 
+At Rootstrap we classify waste. We found that people were struggled to classify correctly, 
 and then we end up not recycling most of the generated waste at the office, since if there were items in the wrong basket, 
 all the basket should not be classified.
 Because of this reason, we created an app to help people at our company to classify waste. 
@@ -54,7 +54,7 @@ Because of this reason, we created an app to help people at our company to class
 ### Direct Use
 
 ```bash
-model = load_learner(f'result-resnet34.pkl')
+model = load_learner("result-resnet50.pkl")
 model.predict()
 ```