Knit Markdown syntax for message formatting

Various messaging application supports markdown syntax in both normal and interactive messaging, but there are certain changes from markdown. So Knit has unified text formatting for you. We support following things currently:

Bold text
Italic text
Link embedding
New line characters

Symbol	Syntax	Examples
_	This is _italic_ text.	This is italic text.
**	This is bold text.	This is bold text.
[Link Name](Link)	This is [Link](https://abc.com)	This is Link
\n	This is first line.\nThis is second line.	This is first line. This is second line.

Use this markdown down to format your text messages sent via Knit APIs.