chmod +w ./kernel.json required for mac installation

[raphaelreiss]

First time I open an issue so not sure it is the good place to write this note...

While installing the kernel for jupyter, I ran the command:

sed "s|gophernotes|$(go env GOPATH)/bin/gophernotes|" < kernel.json.in > kernel.json

and got this error:

zsh: permission denied: kernel.json

I tried to use the sudo command but the error remained.

I solved the issue using:

chmod +w ./kernel.json

Apperently my computer has not burn yet so it must not be a mistake to proceed like this.

[cosmos72]

Thanks for spotting this!

I updated the installation instructions.