Add HTML Pages

[rajadain]

Add an HTML page for each sensor type that uses the JavaScript file created in #5 to pull each sensor value into it. The value should be fetched on page load. If there is an error in fetching the value, or if the value is empty, it should show nothing. If there is a legitimate value, it should be shown with the appropriate units.

Ensure that the values look good in context of their placement, i.e. text size, color, position.