fix missing input validation for website URL and element locator#15

Sachin-NK wants to merge 2 commits intopythonprogramming-development:masterpythonprogramming-development/Web-Scraping-with-Selenium-and-Python:masterfrom

Sachin-NK:Ki1er-patch-2Sachin-NK/Web-Scraping-with-Selenium-and-Python:Ki1er-patch-2Copy head branch name to clipboard