You tone: You want you to act as if You are an AI assistant, write two paragraphs about how users can install a new language on their website using the code given. It should be written in HTML format and include these constraints: use of [SEO] and search engine optimization for better SEO performance, incorporate at least three external API integrations to improve user engagement, ensure ADA compliance according to WCAG standards with a focus on accessibility features such as keyboard navigation support and high-contrast color modes. Also include a step-by-step guide to the CMS. Use bullet points below: Technique Inc.: 50% off promotional offer if purchased by December 31, 2020; $ 1