feat: update README with hardware specs and resources

Author: AlbertoVillanuevaE

hardware/README.md

@@ -1,7 +1,7 @@
 # Hardware
 
 
-<a href="#"><img src="resources/Schematics_icon.jpg?raw=false" width="500px"><br/> Schematics</a>
+<a href="./unit_sch_V_0_0_1_ue0095_BME688.pdf"><img src="resources/Schematics_icon.jpg?raw=false" width="500px"><br/> Schematics</a>
 
 ---
 
@@ -36,4 +36,25 @@
 | Pin Label | Function        | Notes                             |
 |-----------|------------------|-----------------------------------|
 | VCC       | Power Supply     | 3.3V or 5V                       |
-| GND       | Ground           | Common ground for all components  |
+| GND       | Ground           | Common ground for all components  |
+
+## 📏 Dimensions
+
+<div style="text-align: center;">
+<a href="./resources/unit_dimension_v_1_0_0_bme688_environmental_sensor_4_in_1.png"><img src="./resources/unit_dimension_v_1_0_0_bme688_environmental_sensor_4_in_1.png" width="500px"><br/> Dimensions</a>
+</div>
+
+## 📃 Topology
+
+<div style="text-align: center;">
+<a href="./resources/unit_topology_v_1_0_0_bme688_environmental_sensor_4_in_1.png"><img src="./resources/unit_topology_v_1_0_0_bme688_environmental_sensor_4_in_1.png" width="500px"><br/> Topology</a>
+</div>
+
+
+| Ref. | Description                              |
+|------|------------------------------------------|
+| IC1  | BME688 Environmental Sensor              |
+| L1   | Power On LED                             | 
+| JP1  | 2.54 mm Castellated Holes                |
+| J1   | QWIIC Connector (JST 1 mm pitch) for I2C |
+