update chat badge

README.md

@@ -12,7 +12,7 @@ Supports JSON Schema draft-04/06/07/2019-09/2020-12 ([draft-04 support](https://
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-[![SimpleX](https://img.shields.io/badge/chat-on%20SimpleX-%2307b4b9)](https://simplex.chat/contact#/?v=1-2&smp=smp%3A%2F%2Fu2dS9sG8nMNURyZwqASV4yROM28Er0luVTx5X1CsMrU%3D%40smp4.simplex.im%2FV-6t4hoy_SsvKMi9KekdGX-VKQOhDeAe%23%2F%3Fv%3D1-2%26dh%3DMCowBQYDK2VuAyEAm98gjwvrAEiiz_YgBoaQB9dtKTl5Om1pborUyevQwzg%253D%26srv%3Do5vmywmrnaxalvz6wi3zicyftgio6psuvyniis6gco6bp6ekl4cqj4id.onion&data=%7B%22type%22%3A%22group%22%2C%22groupLinkId%22%3A%22wYrTFafovkymjUtc2vUjCQ%3D%3D%22%7D)
+[![SimpleX](https://img.shields.io/badge/chat-on%20SimpleX-70F0F9)](https://simplex.chat/contact#/?v=1-2&smp=smp%3A%2F%2Fu2dS9sG8nMNURyZwqASV4yROM28Er0luVTx5X1CsMrU%3D%40smp4.simplex.im%2F8KvvURM6J38Gdq9dCuPswMOkMny0xCOJ%23%2F%3Fv%3D1-2%26dh%3DMCowBQYDK2VuAyEAr8rPVRuMOXv6kwF2yUAap-eoVg-9ssOFCi1fIrxTUw0%253D%26srv%3Do5vmywmrnaxalvz6wi3zicyftgio6psuvyniis6gco6bp6ekl4cqj4id.onion&data=%7B%22type%22%3A%22group%22%2C%22groupLinkId%22%3A%224pwLRgWHU9tlroMWHz0uOg%3D%3D%22%7D)
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