That bit about Espruino running on Linux/Raspberry Pi having internet access refers to running the Espruino firmware on that platform, not on an Espruino board connected to that platform.
To get internet access on an Espruino board (or other platform other than linux/RPi), you need a CC3000 or WizNET Wiz550io network adapter.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
That bit about Espruino running on Linux/Raspberry Pi having internet access refers to running the Espruino firmware on that platform, not on an Espruino board connected to that platform.
To get internet access on an Espruino board (or other platform other than linux/RPi), you need a CC3000 or WizNET Wiz550io network adapter.