Update README.md

Author: Chen-Junren

README.md

@@ -7,3 +7,5 @@ An application using the Python language that supports users in checking the wea
 3. Go to [https://dev.qweather.com/](https://dev.qweather.com/) and sign up an account.
 4. Go to [https://console.qweather.com/#/apps](https://console.qweather.com/#/apps) and create a project. Each account has one free project. 
 5. Go back to the above link, and get your key. Put it into settings.txt.
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+If the font does not display properly, download the otf file from the source code and install it.