Simple header

| cell1 | cell2
|-----
| cell3 | cell4

Full header

| cell1 | cell2
|-------|-------|
| cell3 | cell4

With alignment and superfluous alignment defs

| default | left | center | right | default
|-| :- |:-: | -: | - | :-: | :-
| cell1 | cell2 | cell3 | cell4 | cell5

With leading sep line

|:-:|-:|
| cell1 | cell2
|-------|-------|
| cell3 | cell4

Multiple bodies

| cell1 | cell2
+ :-: |
| cell3 | cell4
|----|||
| cell5 | cell6
