Update README.md

Author: AdamGaskins

README.md

@@ -31,16 +31,48 @@ Barcoder::datamatrix('data to encode')->toSvg();
 #### Code 128
 ```php
 Barcoder::code128('data to encode')->toSvg();
+
+Barcoder::code128('data to encode')->hideLabel()->toSvg();
+```
+
+#### EAN-8
+```php
+Barcoder::ean8('12345678')->toSvg();
+
+Barcoder::ean8('12345678')->hideLabel()->toSvg();
+
+// check digit will automatically be calculated
+Barcoder::ean8('1234567*')->toSvg();
+```
+
+#### EAN-13
+```php
+Barcoder::ean8('1234567890123')->toSvg();
+
+Barcoder::ean8('1234567890123')->hideLabel()->toSvg();
+
+// check digit will automatically be calculated
+Barcoder::ean8('123456789012')->toSvg();
 ```
 
 #### UPC-A
 ```php
-Barcoder::upca('data to encode')->toSvg();
+Barcoder::upca('123456789012')->toSvg();
+
+Barcoder::upca('123456789012')->hideLabel()->toSvg();
+
+// check digit will automatically be calculated
+Barcoder::upca('12345678901')->toSvg();
 ```
 
 #### UPC-E
 ```php
-Barcoder::code128('data to encode')->toSvg();
+Barcoder::upce('123456')->toSvg();
+
+Barcoder::upce('123456')->hideLabel()->toSvg();
+
+// check digit will automatically be calculated
+Barcoder::upce('12345')->toSvg();
 ```
 
 ## Testing