Add preliminary Empyrean documentation

Author: NT7S

.gitignore

@@ -2,4 +2,5 @@ _site/
 .sass-cache/
 .jekyll-metadata
 _pdf
-.idea/
+.DS_Store
+.idea

.gitlab-ci.yml

@@ -0,0 +1,26 @@
+image: ruby:2.3
+
+variables:
+  JEKYLL_ENV: production
+
+test:
+  stage: test
+  script:
+  - sh ./var/build.sh
+  - bundle exec jekyll build -d test
+  artifacts:
+    paths:
+    - test
+  except:
+  - master
+
+pages:
+  stage: deploy
+  script:
+  - sh ./var/build.sh
+  - bundle exec jekyll build -d public
+  artifacts:
+    paths:
+    - public
+  only:
+  - master

.vscode/settings.json

@@ -0,0 +1,6 @@
+// Place your settings in this file to overwrite default and user settings.
+{
+  "files.associations": {
+    "*.html": "liquid"
+  }
+}