New Validator for words with special

Added validateTextKey for key text that do not accept special characters or spaces.

New Release!

• Updated the main Readme
• Added URL Validator

0.2.1: updated version and add example to Stackblitz

Available custom validators

Works with Angular 5, Angular 6 and Angular 7

• validateDate (format: DD/MM/YYYY)
• validateCNPJ (format: xx.xxx.xxx/xxxx-xx | xxxxxxxxxxxxxx)
• validateCPF (format: xxx.xxx.xxx-xx | xxxxxxxxxxx)
• validatePhone (format: (xx)xxxxx-xxxx | (xx)xxxx-xxxx | xxxxxxxxxx)