{"action":"opened","number":369,"pull_request":{"url":"https://api.github.com/repos/Khan/KaTeX/pulls/369","id":47874424,"html_url":"https://github.com/Khan/KaTeX/pull/369","diff_url":"https://github.com/Khan/KaTeX/pull/369.diff","patch_url":"https://github.com/Khan/KaTeX/pull/369.patch","issue_url":"https://api.github.com/repos/Khan/KaTeX/issues/369","number":369,"state":"open","locked":false,"title":"Add a link to symbol/function support preview page","user":{"login":"utensil","id":64258,"avatar_url":"https://avatars.githubusercontent.com/u/64258?v=3","gravatar_id":"","url":"https://api.github.com/users/utensil","html_url":"https://github.com/utensil","followers_url":"https://api.github.com/users/utensil/followers","following_url":"https://api.github.com/users/utensil/following{/other_user}","gists_url":"https://api.github.com/users/utensil/gists{/gist_id}","starred_url":"https://api.github.com/users/utensil/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/utensil/subscriptions","organizations_url":"https://api.github.com/users/utensil/orgs","repos_url":"https://api.github.com/users/utensil/repos","events_url":"https://api.github.com/users/utensil/events{/privacy}","received_events_url":"https://api.github.com/users/utensil/received_events","type":"User","site_admin":false},"body":"As suggested by @kevinbarabash in https://github.com/Khan/KaTeX/issues/103#issuecomment-148118466 , I've added a link to a symbol/function support preview page that I automatically generated and handcrafted in CONTRIBUTING.md.\r\n\r\nThis PR is not meant to be directly merged(though that's also possible), but opens a discussion about how to integrate this preview page into contributing guide.\r\n\r\nThe preview page currently lists all symbols and function in KaTeX wiki and MathJax document, and attempts to render them, and falls into 3 kind of results:\r\n\r\n* successfully rendered by just the symbol itself, presented in a green cell\r\n* can't be rendered by itself(because it's function), but can be successfully rendered by providing an proper example,  presented in a blue cell, along with the tooltip of the original TeX code of the example, that's the main handcraft part\r\n* failed to render  (because KaTeX doesn't support them in the release yet), presented in a red cell\r\n\r\nThe page is quite self-explanatory and also includes statistics of the three kind of results.\r\n\r\nThe question left to be discussed are:\r\n\r\n* is it proper/good enough to be added to CONTRIBUTING.md ?\r\n* should the preivew page be somewhere more official, like in a rep of KaTeX organization? (the code is not necessary good enough, because it's just a prototype, though it works nicely)\r\n\r\nP.S. I've already signed the 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