---input---
[text](link)

![Image of foo](https://bar.baz)

---tokens---
'['           Text
'text'        Name.Tag
']'           Text
'('           Text
'link'        Name.Attribute
')'           Text
'\n'          Text

'\n'          Text

'!['          Text
'Image of foo' Name.Tag
']'           Text
'('           Text
'https://bar.baz' Name.Attribute
')'           Text
'\n'          Text
