Fix typo in device name

The previous section discusses /dev/drbd0 and this section
uses /dev/drbd1. Rename the second occurence to /dev/drbd0.

Change-Id: I6d30fdcc308a6655a7ce570a68a07cfce091c71e
Closes-Bug: #1276423
Revise htaccess to avoid double slashes when redirecting

Change-Id: If08c289480f8cab0727df9975c1f605e77376100
Partial-bug: 1191447
Merge "Fix typo in device name"
Merge "Revise htaccess to avoid double slashes when redirecting"