Update articles/iot-edge/iot-edge-runtime.md

Author: v-stsavell

articles/iot-edge/iot-edge-runtime.md

@@ -130,7 +130,7 @@ The steps to follow to install this root certificate of the broker on device cli
 
 #### Authentication
 
-The IoT Edge Hub only accepts connections from devices or modules that have an IoT Hub identity. For example, those that have been registered in IoT Hub and have one of the three client authentication methods supported by IoT hub to provide prove their identity: [Symmetric keys authentication](how-to-authenticate-downstream-device.md#symmetric-key-authentication), [X.509 self-signed authentication](how-to-authenticate-downstream-device.md#x509-self-signed-authentication), [X.509 CA signed authentication](how-to-authenticate-downstream-device.md#x509-ca-signed-authentication).  These IoT Hub identities can be verified locally by the IoT Edge hub so connections can still be made while offline.
+The IoT Edge Hub only accepts connections from devices or modules that have an IoT Hub identity. For example, those that have been registered in IoT Hub and have one of the three client authentication methods supported by IoT hub to prove their identity: [Symmetric keys authentication](how-to-authenticate-downstream-device.md#symmetric-key-authentication), [X.509 self-signed authentication](how-to-authenticate-downstream-device.md#x509-self-signed-authentication), [X.509 CA signed authentication](how-to-authenticate-downstream-device.md#x509-ca-signed-authentication).  These IoT Hub identities can be verified locally by the IoT Edge hub so connections can still be made while offline.
 
 IoT Edge modules currently only support symmetric key authentication.