Update example reference with links

Author: malcolm-sparkfun

examples/README.md

@@ -7,28 +7,50 @@ NOTE: Any numbering of examples is to retain consistency with the Arduino librar
 Simple Example for the Qwiic Button. Checks whether the button is pressed and
  then prints its status.
 
+The key methods showcased by this example are: 
+    - [is_button_pressed()](https://docs.sparkfun.com/qwiic_button_py/classqwiic__button_1_1_qwiic_button.html#a4650881c1b1b92ae7f5136f85c8f7385)
+
 ## Qwiic Button Ex2 Ledon
 Simple Example for the Qwiic Button. Turns on the button's built in LED 
  when pressed and prints status.
 
+ The key methods showcased by this example are:
+ - [LED_on()](https://docs.sparkfun.com/qwiic_button_py/classqwiic__button_1_1_qwiic_button.html#a782725413ccd408499c68e98a90de8da)
+ - [LED_off()](https://docs.sparkfun.com/qwiic_button_py/classqwiic__button_1_1_qwiic_button.html#a336063d15fae188869bea17f28742950)
+
 ## Qwiic Button Ex3 Ledconfig
 Simple Example for the Qwiic Button. Checks whether the button is pressed and
  and the LED pulses if it is.
 
+ The key methods showcased by this example are:
+ - [LED_config()](https://docs.sparkfun.com/qwiic_button_py/classqwiic__button_1_1_qwiic_button.html#abc191302e346c948db1afb240e4162db)
+
 ## Qwiic Button Ex4 Queueusage
 Simple Example for the Qwiic Button. Shows how to use he FIFO Queue on the Qwiic Button.
 
+ The key methods showcased by this example are:
+ - [is_pressed_queue_empty()](https://docs.sparkfun.com/qwiic_button_py/classqwiic__button_1_1_qwiic_button.html#acbfa1c9c3a4e4d66db5bb7572899c346)
+ - [time_since_last_press()](https://docs.sparkfun.com/qwiic_button_py/classqwiic__button_1_1_qwiic_button.html#a9b613cd3b2950e32e5fdd55cd05db41e)
+ - [time_since_first_press()](https://docs.sparkfun.com/qwiic_button_py/classqwiic__button_1_1_qwiic_button.html#a3e03b887cc2689aadc7e7830f2f2b8ac)
+ - [is_clicked_queue_empty()](https://docs.sparkfun.com/qwiic_button_py/classqwiic__button_1_1_qwiic_button.html#ad633b6b3f42fbd3c7a560e1e68e45848) 
+ - [time_since_last_click()](https://docs.sparkfun.com/qwiic_button_py/classqwiic__button_1_1_qwiic_button.html#a35c95e275d2ec89a03a2fab95b63de58) 
+ - [time_since_first_click()](https://docs.sparkfun.com/qwiic_button_py/classqwiic__button_1_1_qwiic_button.html#a34cf627be486f530c9e2a33b158990bc) 
+
 ## Qwiic Button Ex5 Popqueue
 Simple Example for the Qwiic Button. Shows how to use he FIFO Queue on the Qwiic Button.
 
+ The key methods showcased by this example are:
+ - [pop_clicked_queue()](https://docs.sparkfun.com/qwiic_button_py/classqwiic__button_1_1_qwiic_button.html#a3e169dd9951d413a4c88e849fd22b67f)
+
 ## Qwiic Button Ex6 Changei2Caddress
 Simple Example for the Qwiic Button. Shows how to change the I2C address of
  the Qwiic Button
 
+ The key methods showcased by this example are:
+ - [set_I2C_address()](https://docs.sparkfun.com/qwiic_button_py/classqwiic__button_1_1_qwiic_button.html#a0658dfd332b10404ad5d18e74de1b7aa)
+
 ## Qwiic Button Ex7 2Buttons
 Simple Example for the Qwiic Button. Daisy chain together two Qwiic Buttons 
  with different I2C addresses. This example works for a Qwiic Button with the 
  default address of 0x6F and one with an address changed to 0x5B. To change 
  the address of a Qwiic Button, please visit example 6.
-
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