Update readme.md

Author: marqdevx

docs/readme.md

@@ -2,5 +2,101 @@
 
 This is a basic documentation about the library for the *SensorKit* .
 
-The library can be downloaded from the Arduino IDE’s library manager or by going to the [github repository](https://github.com/arduino-libraries/Arduino_SensorKit)
+The library it's a wrapper of some libraries to use with the ![Arduino Sensor Kit](), it can be downloaded from the Arduino IDE’s library manager or by going to the [github repository](https://github.com/arduino-libraries/Arduino_SensorKit)
 
+## Classes
+### SensorKit
+
+#### Constructor of the object
+
+```cpp
+#include "Arduino_SensorKit.h"
+
+SensorKit kit;  //Declare the object to use it later
+
+void setup(){}
+void loop(){}
+```
+
+#### Initialization
+
+Using the function `begin()` at the beginning of the `setup()`
+
+```cpp
+#include "Arduino_SensorKit.h"
+
+SensorKit kit;  //Declare the object to use it later
+
+void setup(){
+  kit.begin();
+}
+
+void loop(){}
+```
+
+###  Oled
+
+Using U8G2 library
+
+### Accelerometer
+
+Using LIS3DHTR library, this library renames their functions.
+github.com/Seeed-Studio/Seeed_Arduino_LIS3DHTR
+        
+#### Using the Accelerometer
+
+```cpp
+#include "Arduino_SensorKit.h"
+
+SensorKit kit;  //Declare the object to use it later
+
+float acceleration;
+
+void setup(){
+  kit.begin();
+}
+
+void loop(){
+  Serial.begin(9600);
+  acceleration = Accelerometer.readX();
+  Serial.println(acceleration);
+}
+```
+
+#### bool begin()
+
+Init and returns true if success, already done in the `SensorKit`'s object `begin()`
+
+#### bool available()
+
+Return if the sensor its good to give the data
+
+#### float readX()
+
+Return X axis acceleration
+
+#### float readY()
+
+Return Y axis acceleration
+
+#### float readZ()
+
+Return Z axis acceleration
+
+#### void setOutputDataRate(odr_type_t odr);
+        
+###  Pressure
+#### DHTPIN
+By default, once you include the library it has been set to digital pin 3, it can be changed by adding
+`#define DHTPIN yourPin` 
+#### bool begin();
+Init and returns true if success, already done in the `SensorKit`'s object `begin()`
+#### void end();
+
+#### float readTemperature();
+#### uint32_t readPressure();
+#### float readAltitude();
+        
+### Environment
+        It has DHTPIN defined by default to digital pin 3, you can redefine it by adding
+        `#define DHTPIN yourPin`