Vim: Editing in Insert Mode

Insert Mode is for inserting and editing text. To enter this mode from Normal Mode, you can use a variety of commands.

Command	Description
`i`	Insert text before the cursor.
`a`	Append text after the cursor.
`o`	Open a new line below the current line and enter insert mode.
`O`	Open a new line above the current line and enter insert mode.
`Esc`	Exit insert mode and return to normal mode.