docs: fix impaction ionization rendering (!820) · Merge requests · Allpix Squared / Allpix Squared · GitLab

Stephan Lachnit requested to merge slachnit/allpix-squared:p-fix-impact-ionization-docs into master Jul 01, 2022

See https://allpix-squared.docs.cern.ch/docs/05_models/05_impact_ionization/#bologna-model, \circ does not work with KaTeX and adding one cite link was forgotten.