v2.3.1 On-line simulation added for example files, documentation corrections and updates

• WOKWI simulation added for the following examples:
  • blinkExample (https://wokwi.com/projects/414743484710761473)
  • oneDisplayExample (https://wokwi.com/projects/414740776518446081)
  • doubleGaugeExample (https://wokwi.com/projects/414798270033977345)
  • fastRefreshUseExample (https://wokwi.com/projects/414798729014618113)
  • gaugeExample (https://wokwi.com/projects/414799255569708033)
  • partialBlinkExample (https://wokwi.com/projects/414799772454823937)
  • refreshUseExample (https://wokwi.com/projects/414800983125084161)
  • setWaitCharExample (https://wokwi.com/projects/414801219291718657)
  • twoDisplaysExample (https://wokwi.com/projects/414802678289036289)
  • waitExample (https://wokwi.com/projects/414801567923357697)