erusev/parsedown — pull request #97 by wkpark (2014-02-10 13:59:40+00:00)
Title: check the validity of heading

parsedown does not check the validity of the title heading

## examples

~~~
#######
~~~
#######

| GFM | parsedown |
|------- | -------------- |
| OK | `

` |

~~~
############# 1 ##############
~~~
############## 1 #############

| GFM | parsedown | markdown extra |
|------- | -------------- | ------------------- |
| OK | `` | `

######## 1

` |