[mediacapture-screen-share] Editorial: Use {{func()}} or {{func}} (#247)

eladalon1983 has just created a new issue for https://github.com/w3c/mediacapture-screen-share:

== Editorial: Use {{func()}} or {{func}} ==
There is inconsistency in this document.
* 8 references to `{{MediaDevices/getUserMedia()}}`, 0 references to `{{MediaDevices/getUserMedia}}`.
* 6 references to `{MediaDevices/getDisplayMedia()}}`, 17 references to `{MediaDevices/getDisplayMedia}}`.

Shall we align on a single style?

Please view or discuss this issue at https://github.com/w3c/mediacapture-screen-share/issues/247 using your GitHub account


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