Update README.md

Author: nesnes

README.md

@@ -14,7 +14,7 @@ This sample shows how to use multiple ZED cameras in a single application.
 
 ## Build the program
 
-Download the sample and follow the instructions bellow: [More](https://www.stereolabs.com/docs/getting-started/application-development/)
+Download the sample and follow the instructions below: [More](https://www.stereolabs.com/docs/getting-started/application-development/)
 
 #### Build for Windows