Summary: Screenshotlayer API adds pricing links

Why It Matters: This change makes it easier for people to see pricing options.

What Changed:

• The "TRUSTED BY THE SMARTEST COMPANIES" text now links to the screenshotlayer.com homepage.
• The sections "URL to Screenshot High resolution PNG, JPEG and GIF website screenshots...", "Simple & Fast API Requested...", "Advanced Options Set your preferred thumbnail...", and "Easy on your Budget Website Screenshots..." now link to the screenshotlayer.com homepage.
• The "yearly billing available »" text for Basic, Professional, and Enterprise plans now links to the screenshotlayer.com homepage and has a tooltip "pay yearly and save 15%".
• Two empty links were added below "Contact Us".
• The "Create Account »" text now links to the screenshotlayer.com homepage.