FULL tutorial for flashing Espruino into nRF52832 with Raspberry Pi (Zero) using OpenOCD and SWD (two wires)

Does anybody knows why I am getting error while installing OpenOCD?

[submodule "tools/git2cl"]
	path = tools/git2cl
	url = http://repo.or.cz/r/git2cl.git
[submodule "jimtcl"]
	path = jimtcl
	url = http://repo.or.cz/r/jimtcl.git
[submodule "src/jtag/drivers/libjaylink"]
	path = src/jtag/drivers/libjaylink
	url = http://repo.or.cz/r/libjaylink.git

Faling to install all above submodules with same error

fatal: unable to access 'http://repo.or.cz/git2cl.git/': Recv failure: Connection reset by peer

Is OpenOCD still in business?

//Abhinav