Update README.md

fix README.md file

README.md

@@ -325,9 +325,9 @@ Quadruped Animals from Images](https://arxiv.org/pdf/2108.13958)
 
 ## **Notes on data**
 
-> If a *keypoints* contains `[-1.0, -1.0]`, it means that the point is not visible in the image. These points must be masked when training the model.
+> If a *keypoints* contains `[-1.0, -1.0]`, it means that the point is not visible in the image. These points must be masked when training the model.
 
-> Images are stored as a Base64 string. They can be transformed using the function:
+> Images are stored as a Base64 string. They can be transformed using the function:
 
 ```python
 import base64