Added README for remount

I should add instructions on how to call it too

remount_checker/README.md

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+# Remount Checker
+
+This is a very simple program to check if a particular folder is a mounted folder or not. If it's not, run the mount command - simple!
+
+## ``mount_points``
+You *need* a ``mount_points.py`` file. The ``example_mount_points.py`` provides an example format (it's a touple - first element is the folder to check, second element is the command to run).
+
+## ``mount`` command
+You'll need to make sure that the ``cron``user (can't think of the exact correct term - the user that cron _pretends_(?) to be when runnign the command??) is able to actually run the mount command. There are 2 simple options that I can see:
+
+1. Use ``sudo crontab -e`` and make ``root`` use run the command, or
+2. Make your user able to run the mount command. I'm sorry I don't know 100%, but I think that means adding ``user`` to the mount options in ``fstab``. 
+
+## crontab
+The idea is you should run this is crontab every X minutes - 5 seems to work fine for me. An example crontab is:
+
+``*/5 * * * * /usr/bin/python /home/<USER>/code/remount_checker/remount.py``
+
+Replace <USER> (and the rest) with the location of remount

remount_checker/example_mount_points.py

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+mount_points = (
+    # ('/mnt/external', 'mount /mnt/external')
+    # ('/mnt/network_drive', 'cd /mnt; mount network_drive')
+)

remount_checker/mount_points.py

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+mount_points = (
+    ('/mnt/btn', '/usr/bin/mount /mnt/btn'),
+    ('/mnt/ptp', '/usr/bin/mount /mnt/ptp'),
+    ('/mnt/music', '/usr/bin/mount /mnt/music')
+)

remount_checker/remount.py

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+import sys
+import subprocess
+
+try:
+    from mount_points import mount_points
+except ImportError:
+    print('Couldn\'t find the mount points. Please copy the example_mount_points.py')
+    print('to mount_points.py and edit the file.')
+    sys.exit(1)
+
+def is_mounted(mount_point):
+    lines = None
+    with open('/proc/mounts', 'r') as f:
+        lines = f.readlines()
+    for line in lines:
+        if mount_point in line:
+            return True
+    return False
+
+if __name__ == '__main__':
+    for mount_point in mount_points:
+        if is_mounted(mount_point[0]):
+            print('{} is mounted'.format(mount_point[0]))
+        else:
+            print('{} is not mounted; remounting using {}'.format(mount_point[0], mount_point[1]))
+            subprocess.call(mount_point[1], shell=True)
+            if is_mounted(mount_point[0]):
+                print('{} if mounted again'.format(mount_point[0]))
+            else:
+                print('{} is not mounted - might need fixing'.format(mount_point[0]))
+