Missing adapt_SpikesFile function and plt.show() call in the documentation examples

[alvayus]

The ReadTheDocs Documentation shows some examples that reference the function adapt_SpikesFile, which is missing in the current version of PyNAVIS. It could be solved by renaming Functions.adapt_SpikesFile to Functions.adapt_timestamps, whose name is the real function name. This should be done at the sections:

• Load files (subsections 2 & 3)
• Manually split spiking information (subsections 1 & 2)
• Phaselock

Furthermore, it could be nice to complete some examples with the plt.show() call, which is necessary to show the plots. These examples are:

• Load files (subsection 3)
• Convert from mono to stereo files and vice versa