Codacy changes

[rajikaimal]

Take Codacy suggestions into account and make necessary changes to improve the code quality.

[rajitha1998]

I am currently working on adding Codacy suggestions. I would like to know some details regarding this @rajikaimal .

• Codacy was showing some suggestions under the category of Error Prone which I assume that the console logs were added to display the output of this example or to display an error message.
  E.g. -
  
  Do we need to remove these console logs?

• I have corrected all code style suggestions on JavaScript.

• I have formatted the readme file using a markdown plugin since codacy was showing some formatting issues with readme file.

• I also assumed that the security issue by using a Found non-literal argument in require in this scenario should be ignored const ncConfig = require(path.join(process.cwd(), ".nc.config"));
  

I would like to make any changes according to your suggestions regarding this PR @rajikaimal