Update 2-minute-setup.md

Added the command for the super user. Also, fixed a problem where the terminal commands were showing up on the same line. Created a code block for the two terminal commands.
Clarify tab-switching keyboard shortcut option
Updating redirects to github

Needed due to ownership transfer from remy to jsbin
Updating links to github

Remy => jsbin transfer
Removed the min-width in CSS. Fixes #954
Merge pull request #1086 from jsbin/fix/954-wide-embed

Removed the min-width in CSS. Fixes #954
Merge pull request #1047 from planetoftheweb/patch-1

Update 2-minute-setup.md
+first of alpha users
3.10.2
Handle 404s on bin urls much, much earlier
Updated repo location
3.10.3
reserve "font"
Created large url namespace.

Changed generate to const, vowel,... to create a larger namespace.

Also removed .toUpperCase as it made no difference, and now much easier to read.
Create session-keys.md
Update session-keys.md
Update session-keys.md
Updating to stay in line with learn
Attempt url length 3 times before getting bigger
RESTORE THE EMMETS!

Fixes #1091