chore: add chr prefix to examples

[sehilyi]

Changed chromosome names in the examples to use chr prefix (e.g., 1 --> chr1) since the next version of Gosling will let ones use exact chromosome names (gosling-lang/gosling.js#796).

[manzt]

Looks great! Just a thought - I wonder if we should introduce a helper utility for domains as well (similar to gos.value or gos.csv).

[sehilyi]

I wonder if we should introduce a helper utility for domains as well (similar to gos.value or gos.csv).

Do you mean something like

gos.GenomicDomain("chr1:2000500-3000500")

instead of

gos.GenomicDomain(chromosome="chr1", interval=[2000500, 3000500])

which I think would be helpful?

[manzt]

Yeah something like, but the helper function fully lives in Python:

gos.domain("chr1") # returns gos.DomainChr

gos.domain(2000500, 3000500) # returns gos.DomainInterval

gos.domain("chr1", 2000500, 3000500) # returns DomainChrInterval

Maybe we could even expand this somehow implicitly for xDomain in Python without a utility:

view.properties(
	xDomain=("chr1", 2000500, 3000500) # internally expand tuple into gos.GenomicDomain
)

[sehilyi]

That would be handy. I think the syntax of the first three seems to be a bit more consistent with what we currently have.