markdown bug

[oldrich-s]

monaco-editor version: 0.14.2
Browser: Chrome
OS: Win10 x60
Steps or JS usage snippet reproducing the issue:

Execute:

monaco.editor.create(document.getElementById("container"), {
	value: "{{{test}}}",
	language: "markdown"
});

on this webpage:

https://microsoft.github.io/monaco-editor/playground.html

The coloring is broken.

Change vs/basic-languages/markdown/markdown.js:

[/\{[^}]+\}/, 'string.target'],

into this:

[/\{+[^}]+\}+/, 'string.target'],

The coloring is fixed.

[AasthaGupta]

@alexandrudima I'd like to work on this. This seems like a change in the monaco-language repository (https://github.com/Microsoft/monaco-languages/blob/master/src/markdown/markdown.ts#L134)