fix(deps): update dependency markdown-it to v11 (#1874)
fix(deps): update dependency markdown-it to v11 (#1874)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [markdown-it](https://togithub.com/markdown-it/markdown-it) | dependencies | major | [`^10.0.0` -> `^11.0.0`](https://renovatebot.com/diffs/npm/markdown-it/10.0.0/11.0.0) |

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### Release Notes

<details>
<summary>markdown-it/markdown-it</summary>

### [`v11.0.0`](https://togithub.com/markdown-it/markdown-it/blob/master/CHANGELOG.md#&#8203;1100---2020-05-20)

[Compare Source](https://togithub.com/markdown-it/markdown-it/compare/10.0.0...11.0.0)

##### Changed

-   Bumped `linkify-it` to 3.0.0, [#&#8203;661](https://togithub.com/markdown-it/markdown-it/issues/661) + allow unlimited `.` inside links.
-   Dev deps bump.
-   Switch to `nyc` for coverage reports.
-   Partially moved tasks from Makefile to npm scripts.
-   Automate web update on npm publish.

##### Fixed

-   Fix em- and en-dashes not being typographed when separated by 1 char, [#&#8203;624](https://togithub.com/markdown-it/markdown-it/issues/624).
-   Allow opening quote after another punctuation char in typographer, [#&#8203;641](https://togithub.com/markdown-it/markdown-it/issues/641).
-   Assorted wording & typo fixes.

</details>

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