hg: openjfx/11-dev/rt: 8231590: Update location of jfx repo to GitHub in third-party legal files

[johan at lodgon.com]

Changeset: 5a00663a2a72
Author:    kcr
Date:      2020-01-14 20:42 +0100
URL:       https://hg.openjdk.java.net/openjfx/11-dev/rt/rev/5a00663a2a72

8231590: Update location of jfx repo to GitHub in third-party legal files
Reviewed-by: almatvee

! modules/javafx.media/src/main/legal/glib.md
! modules/javafx.media/src/main/legal/gstreamer.md
! modules/javafx.web/src/main/legal/webkit.md