Retry Travis CI deployment

.travis.yml

@@ -0,0 +1,21 @@
+dist: bionic
+
+# installing Hugo from the snap store'
+#   https://snapcraft.io/hugo
+before_install:
+  - sudo apt-get update
+  - sudo apt-get install ruby
+  - wget https://github.com/gohugoio/hugo/releases/download/v0.57.0/hugo_0.57.0_Linux-64bit.deb
+  - sudo dpkg -i hugo_0.57.0_Linux-64bit.deb
+script:
+  - asciidoctor --version
+  - hugo
+deploy:
+  local_dir: "public/"
+  provider: pages
+  skip_cleanup: true
+  github_token: $GITHUB_TOKEN
+  target_branch: gh-pages
+  on:
+    branch: master
+