Update documentation

[Pringels]

Update the readme and relevant code docs to include the following:

• New usage of chart.js 3.0 (if required)
• New information on how to set up the project locally (See tsdx docs)
• Compatibility notes regarding react hooks and chart.js 3.0 dependency
• Link to legacy docs?

[jonathantvrs]

Hi @Pringels. Do you think about the legend options in all the examples? and add the code for these examples on the example page?

[YakovlevCoded]

@igorlukanin