Add sudo to the shell commands

..so that they can be readily pasted
Get rid of old Mono installation page that turned up in Google and redirect to the new page instead
Update index.md

Remove the with
Change the other > to sudo tee
Add comment about switching to root everywhere
Merge pull request #69 from obadz/patch-1

Add sudo to the shell commands
Move the notes section below the usage section on the linux install guide
Switch the CI install instructions to keyserver and sudo as well
typo
Update dllmap.md
Added redirects for URLs that showed up as 404 in GA
from upstream
Merge branch 'mono-gh-pages' into gh-pages

* mono-gh-pages:
  Added redirects for URLs that showed up as 404 in GA
  Update dllmap.md
  typo
  Switch the CI install instructions to keyserver and sudo as well
  Move the notes section below the usage section on the linux install guide
  Update index.md
  Get rid of old Mono installation page that turned up in Google and redirect to the new page instead
  Add sudo to the shell commands