Add details on how to use emotibitCommSettings

[nitin710]

Description

Adds missing documentation on how to use commSetting.json file in EmotiBitOscilloscope

Type of correction

• [ ] Missing Content
• [ ] Broken Link
• [ ] Inaccurate content
• [ ] Outdated/Deprecated content
• [ ] Inappropriate content
• [ ] Document structure needs updating

Link

• none