Final cleanup of the docs and examples

esp_modem/examples/ap_to_pppos/main/Kconfig.projbuild

@@ -11,6 +11,7 @@ menu "Example Configuration"
         default "mypassword"
         help
             WiFi password (WPA or WPA2) for the example to use.
+
     config ESP_WIFI_CHANNEL
         int "WiFi Channel"
         range 1 13
@@ -23,4 +24,24 @@ menu "Example Configuration"
         default 4
         help
             Max number of the STA connects to AP.
+
+    config EXAMPLE_MODEM_PPP_APN
+        string "Set MODEM APN"
+        default "internet"
+        help
+            Set APN (Access Point Name), a logical name to choose data network
+
+    config EXAMPLE_SIM_PIN
+        string "Set SIM PIN"
+        default "1234"
+        help
+            Pin to unlock the SIM
+
+    config EXAMPLE_USE_MINIMAL_DCE
+        bool "Use minimal network DCE"
+        default n
+        help
+            Define a specific network only DCE class and
+            create it using DCE factory
+
 endmenu