Open the SEO editor. From the Top bar, click on Setting and choose SEO. See the image below-
Fill the details Title, Keywords, Description etc.
Click on Upload Favicon to Upload the Favicon. And click on Social preview button to upload a image that will be used by Social sites when someone share your website.
Title tags are important because they let readers know what information will be present when a user clicks on a page.
They are important for the search engines for the same reason, except they also function to determine the relevancy of the web page as a result in a search query.
If Google doesn’t like your title tag, then they may change it to better suit their / user needs. If this happens, you can bet it most likely won’t be to your liking.
Title tags should be between 50-60 characters in length. Google has not specifically come out and said that title tags should be this length; however, if your title is longer than 60 characters, you risk the chance of it becoming cut off in the middle.
The meta description is an HTML attribute that provides a brief summary of a web page. Search engines such as Google often display the meta description—typically up to 160 characters long—in search results where they can highly influence user click-through rates.