improve description, fix links

README.md

@@ -2,11 +2,13 @@
 arduino-display-lcdkeypad
 =========================
 
-Arduino LCD Keypad Shield driver, supporting both [LiquidCrystal](http://arduino.cc/en/Reference/LiquidCrystal) (4 or 8 bit parallel data bus) and [LiquidTWI2](https://github.com/lincomatic/LiquidTWI2) (I2C bus and RGB color backlight) based HW types.
+Arduino LCD Keypad Shield driver, supporting two HW types: 
+* 4 or 8 bit parallel data bus ([LiquidCrystal](http://arduino.cc/en/Reference/LiquidCrystal) driver)
+* I2C bus and RGB color backlight ([LiquidTWI2](https://github.com/lincomatic/LiquidTWI2) driver)
 
-The **LiquidCrystal** HW can be ordered from here:
-* http://www.robotshop.com/dfrobot-lcd-keypad-shield-arduino-1.html
-* http://hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=25087
+The HW type supported by **LiquidCrystal** can be ordered from here:
+* https://www.robotshop.com/en/lcd-keypad-shield-arduino.html
+* https://hobbyking.com/en_us/kingduino-lcd-keypad-shield-1.html
 * http://www.dx.com/p/arduino-2-6-lcd-keypad-shield-expansion-board-134404#.U4z6LygUdpU
 
 The schematic of this LcdKeypad Shield can be found [here](http://forum.arduino.cc/index.php?action=dlattach;topic=95618.0;attach=15041).
@@ -19,18 +21,18 @@ The **LiquidTWI2** HW can be ordered from here:
 * http://www.adafruit.com/product/772 (blue & white)
 * http://www.adafruit.com/products/716 (RGB color, negative)
 
-Uses a copy of the files taken from the LiquidTWI2 driver (https://github.com/lincomatic/LiquidTWI2)
+Uses a copy of the files taken from the LiquidTWI2 driver: https://github.com/lincomatic/LiquidTWI2
 
 
 
 This driver supports the 5 key pad buttons (one button at a time only).
-This driver detects whether a LiquidTWI2 HW or a LiquidCrystal HW type is present and automatically chooses the apropriate driver variant.
-As long as this driver is used, the I2C address 0x20 is reserved for the LiquidTWI2 HW type (even when you are actually using the LiquidCrystal HW type).
+This driver detects whether a LiquidTWI2 HW or a LiquidCrystal HW type is present and automatically chooses the appropriate driver variant.
+As long as this driver is used, the **I2C address 0x20** is reserved for the LiquidTWI2 HW type (even when you are actually using the LiquidCrystal HW type).
 
 **Requires**:
 * Wire (Arduino Library: https://www.arduino.cc/en/Reference/Wire)
 * LiquidCrystal (Arduino Library: http://arduino.cc/en/Reference/LiquidCrystal)
-* Timer (https://github.com/dniklaus/arduino-utils-timer)
+* Timer (https://github.com/dniklaus/wiring-timer, Arduino Library Manager: wiring-timer
 
 
 
@@ -82,7 +84,7 @@ public:
   }
 };
 
-setup()
+void setup()
 {
   myLcdKeypad = new LcdKeypad();  // instatiate an object of the LcdKeypad class, using default parameters
 
@@ -93,7 +95,7 @@ setup()
   myLcdKeypad->print("Value:");   // print a Value label on the second line of the display
 }
 
-loop()
+void loop()
 {
   scheduleTimers();  // Get the timer(s) ticked, in particular the LcdKeypad dirver's keyPollTimer
 }