Update branch name

[khosravipasha]

Main is the branch name.

Also to trigger doc build action to test the recent changes.

[khosravipasha]

New Documenter key seems to be correct, it did not deploy though (until we merge this PR)

Deployment criteria for deploying preview build from GitHub Actions:
- ✔ ENV["GITHUB_REPOSITORY"]="Tractables/DirectedAcyclicGraphs.jl" occurs in repo="github.com/Tractables/DirectedAcyclicGraphs.jl.git"
- ✔ ENV["GITHUB_REF"] corresponds to a PR number
- ✘ `push_preview` keyword argument to deploydocs is `true`
- ✔ ENV["GITHUB_ACTOR"] exists
- ✔ ENV["DOCUMENTER_KEY"] exists
Deploying: ✘

[khosravipasha]

Seems deployed succesfully after merging the PR:
https://github.com/Tractables/DirectedAcyclicGraphs.jl/actions/runs/8748220177/job/24007909648

Deployment criteria for deploying devbranch build from GitHub Actions:
- ✔ ENV["GITHUB_REPOSITORY"]="Tractables/DirectedAcyclicGraphs.jl" occurs in repo="github.com/Tractables/DirectedAcyclicGraphs.jl.git"
- ✔ ENV["GITHUB_EVENT_NAME"]="push" is "push"
- ✔ ENV["GITHUB_REF"] matches devbranch="main"
- ✔ ENV["GITHUB_ACTOR"] exists
- ✔ ENV["DOCUMENTER_KEY"] exists
Deploying: ✔

[ararslan]

Yes, looks good! https://tractables.github.io/DirectedAcyclicGraphs.jl/dev/