Remove Meterbridge, as URL is broken

Partial follow-up of #209

Author: frans-ebu

README.md

@@ -159,7 +159,6 @@ A curated list of amazingly awesome open source resources for broadcasters.
 * [a_Multiview](https://github.com/Bencosterton/a_MultiView) - A web based multiview for HLS and Youtube links.
 * [BeaqleJS](https://github.com/HSU-ANT/beaqlejs) - A framework to create browser based listening tests for subjective audio quality assessment.
 * [Jack Meter](https://github.com/njh/jackmeter) - Text console based DPM (Digital Peak Meter) for JACK.
-* [JACK Meterbridge](http://plugin.org.uk/meterbridge/) - A collection of graphical Audio meters for JACK (ballistics may be incorrect).
 * [Jmeters](http://kokkinizita.linuxaudio.org/linuxaudio/downloads/index.html) - A collection of graphical audio meters for JACK, including VU, PPM and [EBU R 128](https://tech.ebu.ch/publications/r128) Loudness meters.
 * [LTC-tools](https://github.com/x42/ltc-tools) - A collection of tools to handle Linear Timecode (LTC) and convert to MIDI Timecode (MTC).
 * [MediaConch](https://mediaarea.net/MediaConch) - Implementation checker, policy checker, & reporter for Matroska, FFV1, & PCM.