Chore: Update README (#203)

### Description

A more gentle description of why we started CAREamics.

README.md

@@ -19,10 +19,9 @@ variants and cousins (CARE, Noise2Noise, N2V2, P(P)N2V, HDN, muSplit etc.).
 ## Why CAREamics?
 
 Noise2Void is a widely used denoising algorithm, and is readily available from the `n2v`
-python package. However, n2v is based on TensorFlow and Keras and we found it 
-increasingly hard to maintain. In addition, more recent methods (PPN2V, DivNoising,
-HDN) are all implemented in PyTorch, but are lacking the extra features that would make
-them usable by the community.
+python package. However, `n2v` is based on TensorFlow, while more recent methods 
+denoising methods (PPN2V, DivNoising, HDN) are all implemented in PyTorch, but are 
+lacking the extra features that would make them usable by the community.
 
 The aim of CAREamics is to provide a PyTorch library reuniting all the latest methods
 in one package, while providing a simple and consistent API. The library relies on