Update _index.md (#358)

Fix Typo in `Oracle provider`
diff --git a/landing-pages/site/content/en/docs/_index.md b/landing-pages/site/content/en/docs/_index.md
index 52959d6..eed5525 100644
--- a/landing-pages/site/content/en/docs/_index.md
+++ b/landing-pages/site/content/en/docs/_index.md
@@ -97,7 +97,7 @@
 
   <li><a href="/docs/apache-airflow-providers-opsgenie/stable/index.html"><code>Opsgenie</code></a></li>
 
-  <li><a href="/docs/apache-airflow-providers-oracle/stable/index.html"><code>Orcle</code></a></li>
+  <li><a href="/docs/apache-airflow-providers-oracle/stable/index.html"><code>Oracle</code></a></li>
 
   <li><a href="/docs/apache-airflow-providers-pagerduty/stable/index.html"><code>Pagerduty</code></a></li>