* opening and closing links
* sudo example compiles
* add Aura after it was merged to master
* Timestamp doc testing passes
* Timestamp doc testing works, extraneous lines commented out
* balances
* remove extern crate line
* Removed unneeded code snippet from aura
* make consensus compiles
* executive compiles
* cleanup unnecessary lines
* staking (removed examples that are just copies of tests)
* minor typos
* restore tab spacing