Add landing page for carrier boards

Author: santaimpersonator

docs/carriers.md

@@ -0,0 +1,25 @@
+# All Boards
+
+<!-- Import the component -->
+<script type="module" src="https://ajax.googleapis.com/ajax/libs/model-viewer/3.5.0/model-viewer.min.js"></script>
+
+
+<div class="grid cards" style="grid-template-columns: repeat(auto-fit,minmax(8rem,1fr));" markdown>
+
+- **SparkFun GNSS Flex pHAT**
+
+	---
+
+	<!-- [![](./SparkFun_GNSS_Flex_pHAT/assets/img/banner-hookup_guide.png)](./SparkFun_GNSS_Flex_pHAT/index.md) -->
+
+	<model-viewer src="../SparkFun_GNSS_Flex_pHAT/assets/3d_model/web_model.glb" camera-controls poster="../SparkFun_GNSS_Flex_pHAT/assets/3d_model/poster.png" tone-mapping="neutral" shadow-intensity="2" shadow-softness="0.2" camera-orbit="0deg 75deg 0.1623m" field-of-view="25.11deg" style="width: 100%; height: 250px;">
+	</model-viewer>
+
+	<article style="text-align: center;" markdown>
+	[Hookup Guide](./SparkFun_GNSS_Flex_pHAT/index.md){ .md-button .md-button--primary }
+
+	![QR code to product page](./SparkFun_GNSS_Flex_pHAT/assets/img/qr_code/product.png){ .qr }
+	[Purchase from SparkFun :fontawesome-solid-cart-plus:{ .heart }](https://www.sparkfun.com/sparkfun-gnss-flex-phat.html){ .md-button .md-button--primary }
+	</article>
+
+</div>

mkdocs.yml

@@ -430,6 +430,7 @@ nav:
     - mosaic-X5: '!include ./flex_boards/SparkPNT_GNSS_Flex_Module_mosaic-X5/mkdocs.yml'
     - LG290P: '!include ./flex_boards/SparkPNT_GNSS_Flex_Module_LG290P/mkdocs.yml'
   - Carrier Boards:
+    - carriers.md
     - pHAT: '!include ./flex_boards/SparkFun_GNSS_Flex_pHAT/mkdocs.yml'
   - Resources & Support:
     - Resources: resources.md