Feedback

[roblourens]

• raw is assigned 3 times here, you shouldn't need to assign a value to the first one.
  https://github.com/tanhakabir/vscode-notebooks-demo/blob/28bcdd388c0ccaf031191493e9bfcb218bdea5d9/src/extension/notebookContentSerializer.ts#L33-L38
• And similar for groceryList below. Not a big deal just noticeable since you are editing these lines in the demo
• Would be cleaner to use .split() on the string, your keyword will be the first piece
  https://github.com/tanhakabir/vscode-notebooks-demo/blob/complete/src/extension/notebookExecutionKernel.ts#L76
• Omit fileNamePatterns from your language in package.json
• Avoid using the -webkit prefix in your CSS if you can. I think there was a warning for one property.