Ordered list numbers are missing the period

[diakonos]

I noticed this while opening #57 but didn't want to combine 2 bugs into 1 issue.

When an ordered list is rendered, the numbers don't have a period after them. However, this doesn't match CommonMark or markdown-it behavior.

See how the reference implementations display it:

• CommonMark
• markdown-it

I have cloned the example app and added the test content. And here is a screenshot to help make things clear:

[mientjan]

will push this fix later today. thx for spotting

[BatDroid]

when will you release this commit?