add lines to readme and news file, bump version

Author: alexkyllo

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: AzureAuth
 Title: Authentication Services for Azure Active Directory
-Version: 1.3.3
+Version: 1.4.0
 Authors@R: c(
     person("Hong", "Ooi", , "hongooi73@gmail.com", role = c("aut", "cre")),
     person("Tyler", "Littlefield", role="ctb"),

NEWS.md

@@ -1,3 +1,8 @@
+# AzureAuth 1.4.0
+
+- Add new CLI auth type, `get_azure_token(auth_type="cli")` to use the Azure CLI
+  to retrieve a user token.
+
 # AzureAuth 1.3.3
 
 - Documentation update only:

README.md

@@ -79,6 +79,15 @@ tok2 <- get_azure_token("resource2", "mytenant," "serviceapp_id",
                         password="serviceapp_secret", auth_type="on_behalf_of", on_behalf_of=tok0)
 ```
 
+6. The **cli** method uses the
+   [Azure CLI](https://learn.microsoft.com/en-us/cli/azure/install-azure-cli)
+   command `az account get-access-token` to retrieve an auth token. It is mostly
+   useful for interactive programming.
+
+```r
+get_azure_token(auth_type="cli")
+```
+
 If you don't specify the method, `get_azure_token` makes a best guess based on the presence or absence of the other authentication arguments, and whether httpuv is installed.
 
 ### Managed identities