add content and modify gitignore

I decided to read the content for simplicity and data safety on my
site. It's a website, so the content is out there anyway.

content/blog/_draft/why-i-use-hugo.md

@@ -0,0 +1,17 @@
+---
+title: "The reason why I use Hugo"
+date: 2020-09-21T20:37:45+02:00
+slug: ""
+description: "The reason why I use Hugo."
+keywords: []
+draft: true
+tags: [hugo]
+math: false
+toc: false
+---
+This is an example blog post.
+
+- my code got messier
+- I always wanted to start over
+- I wanted a more complex website
+- a menu on every page isn't easy to maintain for more than ~5 pages