Update variables names to camelCase format for consistency (#473)

Clément Pannetier

04.28.2020 c5fbd48e918a6f43281ee4bb81c9b25922fe7758

 exampleSite/content/posts/hugoisforlovers.md

@@ -12,7 +12,7 @@
    "golang",
]
series = ["Getting Started", "Hugo"]
featured_image = "https://imgs.xkcd.com/comics/angular_momentum.jpg"
featuredImage = "https://imgs.xkcd.com/comics/angular_momentum.jpg"
+++

## Step 1. Install Hugo