Apply suggestions from code review

Co-authored-by: Divya S Pillai <91891495+divipillai@users.noreply.github.com>

Author: trantanen

doc/app/PPP_AT_commands.rst

@@ -31,8 +31,8 @@ The set command allows you to start and stop PPP, and optionally define the PDN
 
 .. note::
 
-   When PPP start has been issued, the PPP connection is automatically activated and deactivated when the PDN connection requested for PPP is established and lost, respectively.
-   This will continue until PPP stop is issued.
+   When a PPP start has been issued, the PPP connection is automatically activated and deactivated when the PDN connection requested for PPP is established and lost, respectively.
+   This will continue until a PPP stop is issued.
 
 Syntax
 ~~~~~~
@@ -160,8 +160,8 @@ If you are using CMUX, see :ref:`sm_as_linux_modem` for more information on sett
 
 For the process described here, |SM|'s UARTs must be connected to the Linux host.
 
-1. Start PPP with ``AT#XPPP=1`` command.
-#. Set modem to online mode with ``AT+CFUN=1`` command.
+1. Start PPP with the ``AT#XPPP=1`` command.
+#. Set modem to online mode with the ``AT+CFUN=1`` command.
 #. Wait for ``#XPPP: 1,0,0``, which is sent when the network registration succeeds and PPP has started successfully with the default PDN connection.
 #. Run the following command on the Linux host:
 

doc/migration_notes.rst

@@ -55,11 +55,11 @@ The following changes are mandatory to make your application work in the same wa
    * Removed the ``AT#XPOLL`` command.
      Use ``AT#XAPOLL`` instead.
 
-   * PPP connection must be requested with ``AT#XPPP=1`` in order to get it started when modem is put to online mode with ``AT+CFUN=1``.
-     ``AT#XPPP=1`` can be done before or after ``AT+CFUN=1``.
-     So PPP connection is not started automatically anymore when ``AT+CFUN=1`` is done.
-     When ``AT#XPPP=1`` is done, the PPP connection is started when ``AT+CFUN=1`` is done and stopped when network is lost, for example with ``AT+CFUN=4`` or ``AT+CFUN=0``.
-     When ``AT#XPPP=0`` is done, PPP connection is stopped permanently.
+   * PPP connection must be requested using the ``AT#XPPP=1`` command to get it started when the modem is put into online mode using the ``AT+CFUN=1`` command.
+     The ``AT#XPPP=1`` command can be run before or after the ``AT+CFUN=1`` command.
+     So PPP connection is not started automatically anymore when the ``AT+CFUN=1`` command is run.
+     After the ``AT#XPPP=1`` command is run, the PPP connection is started when the ``AT+CFUN=1`` command is run and stopped when network is lost (for example, with ``AT+CFUN=4`` or ``AT+CFUN=0``).
+     When the ``AT#XPPP=0`` command is run, the PPP connection is stopped permanently.
 
 DTR and RI GPIOs replace Power and Indicate pins
 ------------------------------------------------