<c-d>: switch filename only search on/off
<c-t>: open file in new tab
<c-v>: split vertical and open
<c-x>: split horizontal and open
<leader>rt: run current spec file
<leader>rta: run all specs
]m: To edit start of next method definition
]M: To go to end of next method definition
[m: To start of previous method definition
[M: To end of previous method definition