React-markdown: [bug] Strike not working properly on v4.3.1

[guilhermecastro-hotmart]

Hey!

I am using your editor, and after some tests I faced this behavior. When I try to parse an strikethrough format it won't render if the string has blank spaces close to tilde (~).

~~ teste ~~
~~teste ~~
~~ teste~~

Results of these tests:

It's also reproduced on the demo here: https://rexxars.github.io/react-markdown/

[ChristianMurphy]

@guilhermecastro-hotmart this is how strike through works.
The GFM spec defines strike through as an emphasis type https://github.github.com/gfm/#strikethrough-extension-

Example from emphasis explaining this behavior: https://github.github.com/gfm/#example-361

[ChristianMurphy]

@bdougie same goes for wrapping text in single ~.
From the GFM spec:

Strikethrough text is [...] wrapped in two tildes

https://github.github.com/gfm/#strikethrough-extension-

[bdougie]

I am happy to adhere to the spec. Thanks for linking it @ChristianMurphy, this is helpful.