Added initial mkdocs file

Author: VedantParanjape

.github/workflows/mkdocs-build.yml

@@ -0,0 +1,20 @@
+name: Publish docs via GitHub Pages
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    name: Deploy docs
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout main
+        uses: actions/checkout@v2
+
+      - name: Deploy docs
+        uses: mhausenblas/mkdocs-deploy-gh-pages@master
+        env:
+          GITHUB_TOKEN: ${{ secrets.ACTIONS_KEY_ORG_ADMIN  }}
+          CONFIG_FILE: ./mkdocs.yml
+          EXTRA_PACKAGES: build-base

docs/index.md

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+# Overview
+
+The Open Authenticator is an open source TOTP based hardware authenticator using ESP32. In layman's terms, this does what Google Authenticator or Authy does.

mkdocs.yml

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+site_name: open-authenticator
+site_author: Vedant Paranjape
+site_description: "Documentation for Open Authenticator"
+site_url: https://open-authenticator.github.io
+repo_url: https://github.com/Open-Authenticator
+
+theme:
+    name: readthedocs
+
+nav:
+    - Home: index.md
+
+markdown_extensions:
+  - admonition
+  - codehilite    
+  - pymdownx.tabbed
+  - pymdownx.superfences
+  - pymdownx.smartsymbols
+  - pymdownx.arithmatex