doc: shell: document Ctrl+N and Ctrl+P meta-keys

Document bash and emacs-like way of navigating history in shell. Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
zephyrproject-rtos · Jun 24, 2019 · a3b363e · a3b363e
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diff --git a/doc/reference/shell/index.rst b/doc/reference/shell/index.rst
@@ -365,6 +365,10 @@ The shell module supports the following meta keys:
    * - :kbd:`Ctrl + l`
      - Clears the screen and leaves the currently typed command at the top of
        the screen.
+   * - :kbd:`Ctrl + n`
+     - Moves in history to next entry.
+   * - :kbd:`Ctrl + p`
+     - Moves in history to previous entry.
    * - :kbd:`Ctrl + u`
      - Clears the currently typed command.
    * - :kbd:`Ctrl + w`