Added readme

readme.md

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+# WeatherCLI
+WeaterCLI is a simple weather application that uses the [NowCast from met.no](https://api.met.no/weatherapi/nowcast/2.0/documentation). \
+To use this you need to modify [.env.example](https://github.com/Lyxminxx/weatherCLI/blob/master/.env.example) and change the spot that says youremail to be your email. Then rename the file to .env\
+At this point just source the venv and start the main.py file. Feel free to add your own cities in norway by adding it to [possistions.py](https://github.com/Lyxminxx/weatherCLI/blob/master/possistions.py)\