how-tos made with markdown snippet injector

apps/tests/location.md

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+---
+nav-title: "location How-To"
+title: "How-To"
+description: "Examples for using location"
+---
+# Location
+Using the location requires the Location module.
+<snippet id='location-require'/>
+
+## Other functions
+### Test are location services available for this device
+<snippet id='location-funcs'/>
+
+### Get distance between two locations
+<snippet id='location-distance'/>
+
+## Getting location
+### Receive continuous location updates
+<snippet id='location-updates'/>
+
+### Get last known location
+<snippet id='location-last-known'/>
+
+### Get location once
+if there is `options.timeout` you will receive error on timeout. If `options.timeout` is 0 then the result is the same as the result from `LocationManager.lastKnownLocation`
+and there will be no wait. You can use `options.maximumAge` to specify you don't want to receive locations older than specified time in ms.
+<snippet id='location-timeour'/>