Add MedTimer (#384)

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Co-authored-by: offa <bm-dev@yandex.com>

Author: Futsch1

README.md

@@ -646,6 +646,7 @@ A list of **Free** and **Open Source Software** ***(FOSS)*** for **Android** –
 * [**LibreHealth**](https://gitlab.com/librehealth)
     * [**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://www.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/tree/HEAD) <sup>**[[F-Droid](https://f-droid.org/app/ca.chancehorizon.paseo)]**</sup>