Add orientation CLI and config documentation

examples/config.minimal.yml

@@ -0,0 +1,13 @@
+server:
+  listen_addr: ":8080"
+  default_format: json
+
+databases:
+  - name: weatherdb
+    driver: postgres
+    uri: postgres://localhost:5432/weatherdb?sslmode=disable
+    username: weatherapi
+    password: change-me
+
+templates:
+  base_dir: templates