Add wercker.yml

Will be used to deploy to GitHub Pages, see:

    https://gohugo.io/tutorials/automated-deployments/

Signed-off-by: Alan Orth <alan.orth@gmail.com>

wercker.yml

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+# This references a standard debian container from the
+# Docker Hub https://registry.hub.docker.com/_/debian/
+# Read more about containers on our dev center
+# http://devcenter.wercker.com/docs/containers/index.html
+box: debian
+# You can also use services such as databases. Read more on our dev center:
+# http://devcenter.wercker.com/docs/services/index.html
+# services:
+    # - postgres
+    # http://devcenter.wercker.com/docs/services/postgresql.html
+
+    # - mongodb
+    # http://devcenter.wercker.com/docs/services/mongodb.html
+
+# This is the build pipeline. Pipelines are the core of wercker
+# Read more about pipelines on our dev center
+# http://devcenter.wercker.com/docs/pipelines/index.html
+build:
+    # Steps make up the actions in your pipeline
+    # Read more about steps on our dev center:
+    # http://devcenter.wercker.com/docs/steps/index.html
+  steps:
+    - arjen/hugo-build@1.8.0
+      version: "0.15"