Update getting-started.md
Update getting-started.md

This would have been very helpful to me when first approaching Bazel.

Closes #8215.

PiperOrigin-RevId: 246185728

dslomov/bazel,akira-baruah/bazel,werkt/bazel,bazelbuild/bazel,perezd/bazel,meteorcloudy/bazel,dslomov/bazel,twitter-forks/bazel,dslomov/bazel,safarmer/bazel,davidzchen/bazel,aehlig/bazel,safarmer/bazel,safarmer/bazel,safarmer/bazel,perezd/bazel,twitter-forks/bazel,ulfjack/bazel,ulfjack/bazel,ButterflyNetwork/bazel,bazelbuild/bazel,meteorcloudy/bazel,perezd/bazel,bazelbuild/bazel,perezd/bazel,davidzchen/bazel,werkt/bazel,dslomov/bazel-windows,cushon/bazel,ulfjack/bazel,akira-baruah/bazel,meteorcloudy/bazel,davidzchen/bazel,twitter-forks/bazel,perezd/bazel,dslomov/bazel,ulfjack/bazel,dslomov/bazel-windows,cushon/bazel,akira-baruah/bazel,bazelbuild/bazel,ulfjack/bazel,katre/bazel,ButterflyNetwork/bazel,katre/bazel,bazelbuild/bazel,safarmer/bazel,werkt/bazel,davidzchen/bazel,perezd/bazel,twitter-forks/bazel,aehlig/bazel,dslomov/bazel-windows,dslomov/bazel-windows,cushon/bazel,katre/bazel,dslomov/bazel-windows,twitter-forks/bazel,akira-baruah/bazel,safarmer/bazel,ButterflyNetwork/bazel,dslomov/bazel,davidzchen/bazel,katre/bazel,ulfjack/bazel,meteorcloudy/bazel,ulfjack/bazel,aehlig/bazel,twitter-forks/bazel,akira-baruah/bazel,akira-baruah/bazel,dslomov/bazel,ButterflyNetwork/bazel,bazelbuild/bazel,werkt/bazel,aehlig/bazel,ButterflyNetwork/bazel,cushon/bazel,dslomov/bazel,davidzchen/bazel,aehlig/bazel,twitter-forks/bazel,katre/bazel,katre/bazel,perezd/bazel,cushon/bazel,aehlig/bazel,meteorcloudy/bazel,davidzchen/bazel,meteorcloudy/bazel,werkt/bazel,cushon/bazel,werkt/bazel,aehlig/bazel,meteorcloudy/bazel,dslomov/bazel-windows,ButterflyNetwork/bazel