Update README

README.md

@@ -1,11 +1,28 @@
-![new repo](./images/new_repo.png)
+# Page Turner
 
-# Welcome
+Page Turner is a battery-powered ESP32 development board, with a lightweight set of sensors connected to an e-Paper display.
+
+### Goals
+
+- Low-power operation with 6+ mo on a coin-cell battery
+- Small form-factor
+- Low cost @ ~100 qty orders (will be distributed at tradeshows)
+  - $15 cost target
+- Temperature + humidity sensing and reporting
+- Header pins available to extent the sensor suite to additional external monitors
+
+### Extended Goals
+
+- External DC power input
+- Extended operating temperature (for outdoor weather monitoring)
+- Physical enclosure
+
+# Resources
 
 Components Library: https://hub.allspice.io/AllSpice/AllSpice-Demo-Library
 
 
-## You can edit this file and add information and specifications about your project
+# Specifications
 
- - [ ]  1 pA accuracy
- - [ ]  weight < 2.5 kg
+-  **Minimum operating temperature**: 0°C
+-  **Maximum operating temperature**: 40°C