update docs with new config option

docs/widgets/info/openmeteo.md

@@ -13,6 +13,8 @@ No registration is required at all! See [https://open-meteo.com/en/docs](https:/
     timezone: Europe/Kiev # optional
     units: metric # or imperial
     cache: 5 # Time in minutes to cache API responses, to stay within limits
+    format: # optional, Intl.NumberFormat options
+      maximumFractionDigits: 1
 ```
 
 You can optionally not pass a `latitude` and `longitude` and the widget will use your current location (requires a secure context, eg. HTTPS).

docs/widgets/info/openweathermap.md

@@ -14,6 +14,8 @@ The free tier "One Call API" is all that's required, you will need to [subscribe
     provider: openweathermap
     apiKey: youropenweathermapkey # required only if not using provider, this reveals api key in requests
     cache: 5 # Time in minutes to cache API responses, to stay within limits
+    format: # optional, Intl.NumberFormat options
+      maximumFractionDigits: 1
 ```
 
 You can optionally not pass a `latitude` and `longitude` and the widget will use your current location (requires a secure context, eg. HTTPS).