DOC: link updated (#990)

* link updated

* link updated

Co-authored-by: Arushi Shukla <[email protected]>

Author: arushi09-hub

docs/SUMMARY.md

@@ -11,7 +11,7 @@
   * [Installation Configurations](setup/install/installation-configuration.md)
   * [Override Configurations](setup/install/override-default-devtron-installation-configs.md)
 * [Devtron Upgrade](setup/upgrade/README.md)
-  * [0.2.x-0.3.x](setup/upgrade/devtron-upgrade.0.2.x-0.3.x.md)
+  * [0.2.x-0.3.x](setup/upgrade/devtron-upgrade-0.2.x-0.3.x.md)
 * [Start Using devtron](setup/start-using.md)
 
 ## User Guide

docs/setup/upgrade/README.md

@@ -2,6 +2,6 @@
 
 Welcome to this documentation , to know how to upgrade your exsiting running Devtron!!
 
-**Versions Upragde**
+**Versions Upgrade**
 
 * [0.2.x to 0.3.x](devtron-upgrade-0.2.x-0.3.x.md)