* added support for markdown fenced math blocks
* original markdownEngine.ts
* Add fenced math block rendering to markdown-math
* Update dependencies
* custom parser for fenced math blocks
* custom parser for fenced math blocks
* reverted changes to extension.ts
* reverted all changes from prior implementations
* proper fence grammar implementation for math
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Co-authored-by: Matt Bierner <matb@microsoft.com>
Let 3rd matching group be an end
Previously, the first and third group was
defined as beginning. This is not
true as the first group of the regular
expression is the beginning of the math
inline markdown expression and the third
group the _end_. Once the third group is
correctly assigned, its language scope can
be changed accordingly.
