Select text, a picture, or a place in your document where you want to insert a bookmark. Select the Insert tab and choose Bookmark. On simplified ribbon, select the ellipsis (...) and choose Bookmark. Under Bookmark name, type a name and click Add. Note: Bookmark names need to begin with a letter. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.