remove superfluous header for style guide

Author: chrisvfritz

src/v2/style-guide/index.md

@@ -3,8 +3,6 @@ title: Style Guide
 type: style-guide
 ---
 
-# Style Guide <sup class="beta">beta</sup>
-
 This is the official style guide for Vue-specific code. If you use Vue in a project, it's a great reference to avoid errors, bikeshedding, and anti-patterns. However, we don't believe that any style guide is ideal for all teams or projects, so mindful deviations are encouraged based on past experience, the surrounding tech stack, and personal values.
 
 For the most part, we also avoid suggestions about JavaScript or HTML in general. We don't mind whether you use semicolons or trailing commas. We don't mind whether your HTML uses single-quotes or double-quotes for attribute values. Some exceptions will exist however, where we've found that a particular pattern is helpful in the context of Vue.