message: docs: Add is_outbound field to local_node_info and get_peers
  RPC examples
diff: @@ -500,6 +500,7 @@ curl -H 'content-type:application/json' \
  "score": 1
  }
  ],
  + "is_outbound": null,
  "node_id": "QmTRHCdrRtgUzYLNCin69zEvPvLYdxUZLLfLYyHVY3DZAS",
  "version": "0.9.0"
  },
  @@ -530,6 +531,7 @@ curl -H 'content-type:application/json' \
  "score": 1
  }
  ],
  + "is_outbound": true,
  "node_id": "QmaaaLB4uPyDpZwTQGhV63zuYrKm4reyN2tF1j2ain4oE7",
  "version": "unknown"
  },
  @@ -540,6 +542,7 @@ curl -H 'content-type:application/json' \
  "score": 255
  }
  ],
  + "is_outbound": false,
  "node_id": "QmRuGcpVC3vE7aEoB6fhUdq9uzdHbyweCnn1sDBSjfmcbM",
  "version": "unknown"
  },
  