Update README.md

Author: meatpiHQ

vehicle_profiles/README.md

@@ -1,7 +1,56 @@
 # Vehicle Profiles
 
-This folder contains various vehicle profiles to enable people to easily get their car working with WiCan.
+This folder contains various vehicle profiles to enable people to easily get their car working with WiCAN adapters.
 
 The Names of files/folders do not matter to the end result, they are just there to help organize the various files.
 
 If you would like to add/update a car please make sure it is formatted properly, see various car configs for examples
+
+**car_model**: "Make: Model"
+
+**init**: Initialization string. AT command to initialize the OBD adapter, such as setting the protocol, header, and any other car-specific commands relevant to OBD communication. Every command must end with a semicolon ;
+
+**pids**: Parameter ID request
+
+
+**parameters**: Parameters within a specific PID request. A PID response might contain multiple parameters, such as battery State of Health (SoH) and battery voltage.
+
+**expression**: The expression used to calculate the parameter value
+
+**unit**: The unit of the parameter, e.g., %, °C, or others
+
+**Example:**
+```
+{
+    "car_model": "Hyundai: Ioniq5/Ioniq6/Kona",
+    "init": "ATSH7E4;ATST96;",
+    "pids": [
+        {
+            "pid": "2201019",
+            "parameters": [
+                {
+                    "name": "SOC_BMS",
+                    "expression": "B10/2",
+                    "unit": "%"
+                },
+                {
+                    "name": "Aux_Batt_Volts",
+                    "expression": "B38*0.1",
+                    "unit": "V"
+                }
+            ]
+        },
+        {
+            "pid": "2201057",
+            "parameters": [
+                {
+                    "name": "SOH",
+                    "expression": "[B34:B35]/10",
+                    "unit": "%"
+                }
+            ]
+        }
+    ]
+}
+
+```