Re-edit lorawan.md

Fix link, and tweak phrasing.

Author: Amanda Butler

docs/reference/api/connectivity/lorawan/lorawan.md

@@ -2,7 +2,7 @@
 
 <span class="images">![](https://os-doc-builder.test.mbed.com/docs/development/mbed-os-api-doxy/class_lo_ra_w_a_n_interface.png)<span>LoRaWANInterface class hierarchy</span></span>
 
-The [LoRaWANInterface](https://os-doc-builder.test.mbed.com/docs/development/mbed-os-api-doxy/class_lo_ra_w_a_n_interface.html) provides a C++ API for connecting to the internet over a LoRa network. In this sub-section, we first put light on the API reference for 'LoRaWAnInterface' and then we present an example which can be directly imported to Mbed online compiler.
+The [LoRaWANInterface](https://os-doc-builder.test.mbed.com/docs/development/mbed-os-api-doxy/class_lo_ra_w_a_n_interface.html) provides a C++ API for connecting to the internet over a LoRa network. This subsection explains the `LoRaWAnInterface` API reference and then presents an example that you can directly import to the Arm Mbed Online Compiler.
 
 ### LoRaWANInterface class reference
 
@@ -16,4 +16,4 @@ Please visit our Arm Mbed Online Compiler example, and follow the instructions i
 
 ### Related content
 
-- End-to-end [LoRa on Arm Mbed tutorial](https://docs.mbed.com/docs/lora-with-mbed/en/latest/).
+- End-to-end [LoRa on Arm Mbed tutorial](/docs/development/tutorials/LoRa-tutorial.html).