Small typo in README

[NinaOmejc]

Hi,

thank you for great tutorials!

Fyi, just a small thing. In your instructions for running the tutorials locally, inside subtitle 3. Instantiate the project environment, there should be "" instead of '', so:

julia --project=. -e "using Pkg; Pkg.instantiate()"

instead of:

julia --project=. -e 'using Pkg; Pkg.instantiate()',

otherwise an error occurs:

# Error @ none:1:2
'using
#└───┘ ── character literal contains multiple characters
Stacktrace:
 [1] top-level scope
   @ none:1

[penelopeysm]

Hi @NinaOmejc, thanks for getting in touch!

What operating system and shell are you using?

The double and single quotes shouldn't make a difference on Bash, but my first instinct is that this is different quotation behaviour on a shell we don't use.