Update Connect-ExchangeOnline.md

Minor typo fix

Author: chrisda

exchange/exchange-ps/exchange/Connect-ExchangeOnline.md

@@ -277,7 +277,7 @@ Accept wildcard characters: False
 ### -AccessToken
 **Note**: This parameter is available in version 3.1.0 or later of the module.
 
-The AccessToken parameter specifies the OAuth JSON Web Token (JWT) that's used to connect to ExchangeOnline.
+The AccessToken parameter specifies the OAuth JSON Web Token (JWT) that's used to connect to Exchange Online.
 
 Depending on the type of access token, you need to use this parameter with the Organization, DelegatedOrganization, or UserPrincipalName parameters.