Adding Yeti to the wiki as this mobile application now supports Tasmota devices

Yeti.md

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+[Yeti](https://getyeti.co) is a smart home mobile app (available for [Android](http://m.onelink.me/29c3f112) & [iOS](http://m.onelink.me/bd5b86b5)) that allows you to control your different brands from a single interface. 
+
+It supports a wide range of devices and brands. From Smart Plugs and Lights to Thermostats and Speakers. Currently, it supports the following brands: 
+
+- Philips Hue (Lights)
+- LIFX (Lights)
+- Wemo (Lights & Sockets)
+- Sonos (Play1, Play3, Play5)
+- Yeelight (Lights)
+- Ecobee (Thermostats)
+- Nest (Thermostats)
+- Nuki (Locker)
+- Netatmo (Thermostats & Cameras)
+
+And from now on, in the newest version, it also supports devices with latest Tasmota version installed.
+
+Check out this guide about [Controlling your Tasmota devices with Yeti](https://getyeti.co/posts/controlling-your-sonoff-tasmota-with-yeti)
+# Yeti & Tasmota Integration
+
+There is a guide where you can see step by step how to control your Tasmota devices using Yeti. In that guide, there is an example using Sonoff devices but it will work with almost any device which has the latest Tasmota version installed
+
+[How to control Tasmota devices with Yeti](https://getyeti.co/posts/controlling-your-sonoff-tasmota-with-yeti)
+
+## Requirements
+
+- [Yeti for Android](http://m.onelink.me/29c3f112)
+- [Yeti for iOS](http://m.onelink.me/bd5b86b5)
+- Tasmota version >= 5.12.0
+- Having your Tasmota devices connected to the same Wifi network as your phone
+
+## Connect your Tasmota devices to Yeti
+
+Once you have your Tasmota devices connected to the same network as your phone and Yeti installed on it, open the app.
+
+After opening the app and creating an account, Yeti will start scanning for your smart home devices in your network. If you have any other additional supported brand it'll also find it. 
+
+<img src="https://image.ibb.co/ez79Sx/2i_Phone_7.jpg" width="50%" height="50%">
+
+If Yeti can't find your Tasmota devices automatically in the first scan (This will happen if you don't have a Sonoff device) you can find it manually. 
+Being in the home view, tap in the + button, then select the option configure brands and look for "Sonoff" and then select "Advanced Options". You'll be asked to introduce the Ip of your device manually. After that Yeti will scan for that device in your network
+
+<img src="https://image.ibb.co/m9pZuc/iPhone_7.jpg" width="50%" height="50%">
+
+Finally, you'll be able to control your Tasmota devices
+
+<img src="https://image.ibb.co/jgOoLH/iPhone_7.jpg" width="50%" height="50%">
+
+## Anything Else?
+
+I highly recommend trying charms and routines features in Yeti
+
+## What's coming
+
+Right now, only switch control is available. In the next version, sensor information will be available for users to check them within Yeti and use it as a trigger for routines and charms.