Clean up demo descriptions

[icaoberg]

"Trains a 2D generative PCA nuclear and cell shape model using the Murphy Lab HeLa dataset and makes a shape space plot."

"Trains a 2D generative PCA nuclear and cell shape model using the Murphy Lab HeLa dataset and makes a shape space plot."

"Synthesizes a 2D framework from a PCA generative model."

[icaoberg]

"Reconstructs a 2D framework from a PCA generative model."

[icaoberg]

"Trains a 2D generative PCA nuclear and cell shape model using the Murphy Lab HeLa dataset."

[icaoberg]

"Trains a 2D generative diffeomorphic framework model and a protein model using 10 LAMP2 images from the Murphy Lab HeLa dataset."

[icaoberg]

"Synthesizes one 2D image with nuclear, cell shape, and lysosomal channels from the LAMP2 generative model trained in demo2D01."

[icaoberg]

Should check if demo3D52 ran before.

[asankar]

@icaoberg Should these be changed on the Matlab source code as well? It was lifted directly from there