Connect-SPOService : The term 'Connect-SPOService' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.

Becasue you are not installed the SharePoint Online Management Shell Module.
1. To slove this Download and install the SharePoint Online Management Shell.
2. You can download from this link or you can find in Microsoft downloads.



https://www.microsoft.com/en-us/download/details.aspx?id=35588