add homepage link

Author: russbiggs

src/content/docs/about/about.md

@@ -37,7 +37,7 @@ guidance.
 ---
 
 This repository of global air quality data is brought to you by
-[OpenAQ](https://openaq.org/#/), a nonprofit organization founded in the U.S.
+[OpenAQ](https://openaq.org), a nonprofit organization founded in the U.S.
 OpenAQ was the first to aggregate ground-level ambient air quality data on an
 open-source platform. We provide unique value due to a combination of attributes
 that make these data easily accessible, interoperable, interpretable and

src/content/docs/index.mdx

@@ -27,6 +27,9 @@ import  CustomCard  from '../../components/CustomCard.astro';
 ## Explore
 
 <CardGrid stagger>		
+	<CustomCard title="Visit the OpenAQ website" href="https://openaq.org" icon="laptop">
+    Learn more about OpenAQ organization and our activities.
+	</CustomCard>
 	<CustomCard title="Get started with the OpenAQ API" href="/using-the-api/quick-start" icon="open-book">
     Try our quick start guide to learn the basics of requesting data from OpenAQ.
 	</CustomCard>