Fix errors, change to GH workflow

Karl

12.03.2021 21838797bc0e5751d3d77df2d9742b19ef35fbf3

Fix errors, change to GH workflow

 .github/workflows/build_github_pages.yml

New file
@@ -0,0 +1,20 @@
name: Build GitHub Pages
on:
    push:
        branches:
            - main
jobs:
    build-github-pages:
        runs-on: ubuntu-latest
        steps:
            - name: Install Hugo
              run: sudo snap install hugo
            - name: Checkout Repo
              uses: actions/checkout@v2
            - name: Build Pages
              run: make
            - name: Deploy
              uses: JamesIves/github-pages-deploy-action@4.1.4
              with:
                  branch: gh-pages
                  folder: exampleSite/public

 .travis.yml

File was deleted

 exampleSite/content/math-typesetting.mmark

File was deleted

 exampleSite/content/rich-content.md

@@ -17,13 +17,6 @@
<!--more-->
---

## Instagram Simple Shortcode

{{< instagram_simple BGvuInzyFAe hidecaption >}}


---

## YouTube Privacy Enhanced Shortcode

{{< youtube ZJthWmvUzzc >}}
@@ -33,7 +26,7 @@

## Twitter Simple Shortcode

{{< twitter_simple 1085870671291310081 >}}
{{< twitter_simple user="DesignReviewed" id="1085870671291310081" >}}

---