Support cloning repo into Windows

[dieko95]

When cloning the repo on Windows, github raises the following error:

Cloning into 'C:\Users\Acer\Documents\GitHub\c4v-py'...
remote: Enumerating objects: 162, done.        
remote: Counting objects: 100% (162/162), done.        
remote: Compressing objects: 100% (104/104), done.        
remote: Total 1774 (delta 61), reused 114 (delta 39), pack-reused 1612        
Receiving objects: 100% (1774/1774), 38.75 MiB | 5.32 MiB/s, done.
Resolving deltas: 100% (543/543), done.
error: invalid path 'brat-v1.3_Crunchy_Frog/data/*.ann'
fatal: unable to checkout working tree
warning: Clone succeeded, but checkout failed.
You can inspect what was checked out with 'git status'
and retry with 'git restore --source=HEAD :/'

Would you like to retry cloning ?

This is due to the following path within the repo that is not supported on Windows:
error: invalid path 'brat-v1.3_Crunchy_Frog/data/*.ann'

• Include v1.3_Crunchy_Frog/ in .gitignore
• Document naming conventions, where the annotations are saved, and the workflow for annotating.

After merging this PR, it is necessary to tackle the following PR