Removes 'Monochromatic' (#525)

It's dead.

Author: offa

README.md

@@ -717,7 +717,6 @@ A list of **Free** and **Open Source Software** ***(FOSS)*** for **Android** –
     * [**CCF**](https://gitlab.com/librehealth/toolkit/cost-of-care/lh-toolkit-cost-of-care-app) <sup>**[[F-Droid](https://f-droid.org/app/io.librehealth.toolkit.cost_of_care)]**</sup>
     * [**ECEB**](https://gitlab.com/librehealth/incubating-projects/mhbs/lh-mhbs-eceb) <sup>**[[F-Droid](https://f-droid.org/app/io.librehealth.mhbs.essential_care_for_every_baby)]**</sup>
 * [**MedTimer**](https://github.com/Futsch1/medTimer) <sup>**[[F-Droid](https://f-droid.org/app/com.futsch1.medtimer)]**</sup>
-* [**Monochromatic**](https://github.com/RichyHBM/Monochromatic) <sup>**[[F-Droid](https://f-droid.org/app/uk.co.richyhbm.monochromatic)]**</sup>
 * [**OpenTracks**](https://github.com/OpenTracksApp/OpenTracks) <sup>**[[F-Droid](https://f-droid.org/app/de.dennisguse.opentracks)]**</sup>
 * [**Paseo**](https://gitlab.com/pardomi/paseo) <sup>**[[F-Droid](https://f-droid.org/app/ca.chancehorizon.paseo)]**</sup>
 * [**Red Moon**](https://github.com/LibreShift/red-moon) <sup>**[[F-Droid](https://f-droid.org/app/com.jmstudios.redmoon)]**</sup>