Updating etcd logo

Author: SnehaGunda

articles/cosmos-db/index.yml

@@ -67,7 +67,7 @@ sections:
           html: <p>Use the built-in support for Apache Spark in Azure Cosmos DB to run analytics on the data stored in an Azure Cosmos account. </p>
           image:
             src: media/index/spark-logo.png
-          title: Built-in analytics with spark
+          title: Built-in analytics with Apache Spark
         - href: /azure/cosmos-db/change-feed/
           html: <p>Perform real-time analytics with change feed by reading the sorted list of documents within an Azure Cosmos DB container in the order in which they were modified. </p>
           image: