Feature Request: Can we add angle bracket support to links?

[jjiangweilan]

I have many files that use whitespace as part of the file name. And the rule is written in the spec

[Clustered Deferred and Forward Shading](</docs/Clustered Deferred and Forward Shading.pdf>) <- if I at this, mkdnflow gives an error, because it sees angle brackets as part of the path