Large documentation update (#10)

* Docs: overhaul of all the docs.  The main README.md is much leaner and broke off the steps.  Added a FAQ, greatly expanded the Wiring section.

* Fixed FAQ link

* Fixed some relative links

* Fixed another link

* Minor

* Reverted title of the Project - didn't mean to do that.

example_yaml/vue-utility-solar-better.yaml

@@ -0,0 +1,74 @@
+esphome:
+  name: emporia-vue-utility
+
+  devices:
+    - id: smart_meter_reader
+      name: "Meter"
+
+esp32:
+  board: esp-wrover-kit
+  framework:
+    type: esp-idf
+
+external_components:
+  source:
+    type: git
+    url: https://github.com/nekorevend/esphome-emporia-vue-utility
+
+# Enable logging
+logger:
+
+# Enable Home Assistant API
+# Encryption secures it.  Any password will work.  See FAQ.
+api:
+  encryption:
+    key: "blah"
+
+# Secures OTA Updates.  Any password will work.  See FAQ.
+ota:
+  platform: esphome
+  password: "blah"
+
+wifi:
+  ssid: !secret wifi_ssid
+  password: !secret wifi_password
+
+# Runs a webserver on http://emporia-vue-utility.local with no password
+web_server:
+  port: 80
+# Optionally define a username + password
+#  auth:
+#    username: 'glen'
+#    password: 'vue_password'
+
+# This uart connects to the MGM111
+uart:
+  id: emporia_uart
+  rx_pin: GPIO21
+  tx_pin: GPIO22
+  baud_rate: 115200
+
+sensor:
+  - platform: emporia_vue_utility
+    uart_id: emporia_uart
+    debug: true
+    update_interval: 15s
+    power:
+      name: "Watts"
+      device_id: smart_meter_reader
+    energy:
+      name: "Wh Net"
+      device_id: smart_meter_reader
+    energy_export:
+      name: "Wh Returned"
+      device_id: smart_meter_reader
+    energy_import:
+      name: "Wh Consumed"
+      device_id: smart_meter_reader
+
+# This LED is marked D3 on the pcb and is the power led on the case
+status_led:
+  pin:
+    number: GPIO25
+    # It *is* inverted, but being normally on looks better
+    inverted: false