Bad render header/tags

[Zavy86]

Hi, there is probably a bug in rendering the tags instead of the headers.

Header 1 is a # followed by a space. When #diary is rendered as a header and should not.

[Zavy86]

Ref: https://github.com/Zavy86/WikiDocs/issues/27

[aidantwoods]

There is $parsedown->setStrictMode(true), which will turn off accommodations like this that aren't in spec (this is the only one at present).

[Zavy86]

Hi, in version 1.7.4 is not present this method. Will it be available in the next release?