Fixed yaml syntax

.gitbook.yaml

@@ -1,8 +1,8 @@
 root: ./
 
 structure:
-  readme: README: ./
-  summary: SUMMARY: ./
+  readme: README.md
+  summary: SUMMARY.md
 
 redirects:
   chapter/products: ./products

README.md

@@ -10,3 +10,7 @@ To get started, read through the Getting Started Guide then feel free to jump st
 * [Product Info](datasheets/introduction.md)
 * [API Documentation](firmwareapi/introduction.md)
 * [Pybytes](pybytes/introduction.md)
+
+{% hint style="info" %}
+If you've been redirected here from a link, check if it contains `/chapter`. If yes, by removing that part, you'll get to the correct page. We have migrated our documentation which has changed the path of the pages.
+{% endhint %}