Create Toronto-specific sub-page

Reticketed from https://github.com/CivicTechTO/codeacross.ca/issues/31

What do you think @mouhtasi -- should our Toronto page be here on GitHub Pages, or on the Wordpress website? Honestly, my personal vote is for here (at codeacross.ca/toronto), since this seems more accessible to update than our wordpress website, and the code is version-controlled on GitHub, which is nice :) Thoughts?

首先审查基于 Jekyll 的网站及其 GitHub Pages 设置，然后将提议的 /toronto 位置与现有的 WordPress 网站进行比较。要视为完成，需要就托管做出决定，并定义一个 Toronto 专属子页面，但该 issue 目前没有提供内容、文件或测试方面的详细信息。

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