fix(deployer): escape markdown markup in link text

[yin1999]

Summary

escape markdown markup in url text, as we may use _, * in slug, so only escape those two characters

• https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function*
• https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/__defineGetter__

Problem

See mdn/translated-content#13541, the link text __defineGetter__ has been formatted to defineGetter.

Solution

Escape those characters in link text.

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How did you test this change?

None.

[LeoMcA]

Thank you!