M44485: Fixing typo MX Chip/MXChip

Translator has reported possible source content issue.
Description: "MX Chip" seems source error,
@philmea , can you please help by merging this PR?

Regards.

Author: v-maudel

articles/iot-central/retail/index.yml

@@ -55,7 +55,7 @@ landingContent:
             url: ../preview/tutorial-connect-pnp-device.md
       - linkListType: how-to-guide
         links:
-          - text: Prepare and connect an MX Chip IoT DevKit
+          - text: Prepare and connect an MXChip IoT DevKit
             url: ../preview/howto-connect-devkit.md
           - text: Connect other IoT clouds
             url: ../core/howto-build-iotc-device-bridge.md
@@ -106,4 +106,4 @@ landingContent:
           - text: Use dashboard tiles
             url: ../core/howto-add-tiles-to-your-dashboard.md
           - text: Use application templates
-            url: ../preview/howto-use-app-templates.md
+            url: ../preview/howto-use-app-templates.md