add doc to JigsawSetupDialog::on_spkSolveDegreeSpinBox_valueChanged()

  }

  /**

   * Slot that listens for changes to the SPK Solve Degree spin box.

   *

   * This slot populates the Instrument Pointing Solve Options table according to the value of the

   * SPK Solve Degree. Rows are added depending on the degree set, where number of rows added is

   * equal to the SPK Solve Degree + 1.

   *

   * @param int Value the SPK Solve Degree spin box was changed to.

   */

  void JigsawSetupDialog::on_spkSolveDegreeSpinBox_valueChanged(int i) {

    // number of rows == spkSolveDegree value + 1 (i+1)

    QTableWidget *table = m_ui->positionAprioriSigmaTable;