message: mission_item: comment fixes
diff: @@ -6,7 +6,7 @@ class MissionItemImpl;
  class MissionImpl;
  /**
  - * A mission consists of a vector of MissionItems.
  + * A mission consists of a vector of `MissionItem`s.
  *
  * Each MissionItem can contain a position and/or actions.
  * Mission items are not connected to a device and don't communicate to a device, they are just
  @@ -16,7 +16,7 @@ class MissionItem
  {
  public:
  /**
  - * Constructor to make a new MissionItem.
  + * Constructor to make a new `MissionItem`.
  */
  MissionItem();
  @@ -137,7 +137,7 @@ public:
  CameraAction get_camera_action() const;
  /**
  - * Gets the camera photo interval which was set for this mission item.
  + * Gets the camera photo interval that was set for this mission item.
  *
  * This only has an effect if used together with the camera action `START_PHOTO_INTERVAL`.
  *
  