fix(docs): rst syntax fix (#1090)
fix(docs): rst syntax fix (#1090)

* With Sphinx, the title underlines need to be at least as long as the title

* match heading lengths

getsentry/raven-js,getsentry/raven-js,getsentry/raven-js,housinghq/main-raven-js,getsentry/raven-js,housinghq/main-raven-js,housinghq/main-raven-js