To get the PCB manufactured, you have to upload the Gerber files in a .zip, or .rar file. If you don’t know how to generate proper gerber files in KiCad 5? JLCPCB provided a proper tutorial:

https://support.jlcpcb.com/article/149-how-to-generate-gerber-and-drill-files-in-kicad

After uploading your files it is time to adjust your PCB settings, as you can see you have many options to choose for example even the colour of your board(we have chosen red).Everything here is clearly marked, but if you are still not sure about something you can click on question marks to learn more. To make sure you will be happy how your PCB’s will come up, when you are done with your settings, you can click Gerber viewer to see the glimpse of end result..

Last checks done, it is time to order. In case of this project, there is 2$ for 5, 2-layers PCB and it will take only 1-2 days to build. To place the order, click on the “SAVE TO CART” button.