Update README.md

update https port

Author: gregbo

programming_fundamentals/rest_part_1/README.md

@@ -24,10 +24,10 @@ This lesson leverages the [IOS XE on CSR Recommended Code Always On](https://dev
 
 ***Note: In the video, a different DevNet Sandbox is used***
 
-When running the `curl` for the RESTCONF example, leverage `https://ios-xe-mgmt.cisco.com:9443` as the URL instead of `https://10.10.20.21`.    
+When running the `curl` for the RESTCONF example, leverage `https://ios-xe-mgmt.cisco.com:443` as the URL instead of `https://10.10.20.21`.    
 
 ## Download Slides
 
 You can download the slides for this lesson [here](https://developer.cisco.com/fileMedia/download/c5942bff-3499-3e11-829a-fa90ebeb5fd1). 
 
-> *Suggestion: Right click, "Open in new tab"*
+> *Suggestion: Right click, "Open in new tab"*