Update compairr and immuneML citations

[javh]

We need to update the citations in the AIRR compliances (software / standards) for the following tools:

• compairr - https://academic.oup.com/bioinformatics/article/38/17/4230/6646451?login=true)
• immuneML - https://www.nature.com/articles/s42256-021-00413-z).

[javh]

@GreiffLab , sorry for the extreme delay on this. The table is updated here: https://docs.airr-community.org/en/latest/resources/rearrangement_support.html

Please let me know if I need to make any changes.