Alternative Splicing page should explain whether changing the order of exons can take place

[pioio]

The Alternative Splicing page
https://github.com/stjude/learngenomics.dev/blob/main/docs/06-advanced-topics/alternative-splicing.md
should explain whether the splicing process can take place only by skipping certain exons (e.g. we get exons 1, 2, 4 (exon 3 was skipped)), or whether it's also possible for exons to be rearranged (e.g. we get exons 1, 4, 2, 3). Or maybe even if a combination of both is possible (we get exons 1, 4, 2).