Fix review findings.

Author: Seppo Takalo

features/cellular/framework/API/CellularNetwork.h

@@ -1,3 +1,4 @@
+/*
  *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software

features/netsocket/Socket.h

@@ -112,8 +112,8 @@ class Socket {
     /** Send a message on a socket.
      *
      * The sendto() function sends a message through a connection-mode or connectionless-mode socket.
-     * If the socket is in connectionless-mode, the message is sent to the address specified.
-     * If the socket is in connection-mode, address is ignored.
+     * If the socket is a connectionless-mode socket, the message is sent to the address specified.
+     * If the socket is a connected-mode socket, address is ignored.
      *
      * By default, sendto blocks until data is sent. If socket is set to
      * non-blocking or times out, NSAPI_ERROR_WOULD_BLOCK is returned

features/netsocket/WiFiInterface.h

@@ -26,7 +26,7 @@
 #include "netsocket/NetworkInterface.h"
 #include "netsocket/WiFiAccessPoint.h"
 
-/** Common interface that between Wi-Fi devices.
+/** Common interface between Wi-Fi devices.
  */
 class WiFiInterface: public virtual NetworkInterface {
 public: