docs: add Abhijeet's math-wiki to the showcase (#228)

jet457

2022-11-19 151b9851d6828ef28ed75a40e12be01e421b94d8

 assets/styles/_callouts.scss

@@ -82,6 +82,7 @@
  padding-bottom: 0.25em;
  color: var(--dark);
  background-color: var(--lightgray);
  border-left: 6px solid var(--primary) !important;
  & > p {
    border-top-right-radius: 5px;
    padding: 0.5em 1em;