add traefik fe proxy; change sphinx-docs theme; add soc page

traefik/dynamic.yml

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+# To enable update provider in traefik.yml
+

traefik/traefik.yml

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+global:
+  checkNewVersion: false
+  sendAnonymousUsage: false
+
+entryPoints:
+  web:
+    address: :80
+    http:
+      redirections:
+        entryPoint:
+          to: websecure
+          priority: 10
+  websecure:
+    address: :443
+    http3:
+      advertisedPort: 443
+
+log:
+  level: INFO
+  format: json
+  filePath: /var/log/traefik/traefik.log
+
+accessLog:
+  format: json
+  filePath: /var/log/traefik/access.log
+
+api:
+  insecure: true
+#  dashboard: false
+
+providers:
+  docker:
+    endpoint: unix:///var/run/docker.sock
+    network: rskio_default
+    exposedByDefault: false
+#  file:
+#    filename: /etc/traefik/dynamic.yml
+#    watch: true
+