Explanation:

  1. Document Metadata: Meta tags provide information about the HTML document. The charset specifies the character encoding, and the viewport sets the initial scale for responsive design.

  2. Bootstrap CSS Link: The <link> tag is used to include the Bootstrap CSS file, which provides styling for the document.

  3. Title: The title of the document is changed to "Bootstrap Image Styling Examples."

  4. Containers and Headings: Divided the content into different containers with headings to organize and explain each set of examples.

  5. Image Styling Examples: Demonstrations of various Bootstrap classes for styling images, such as rounded corners, circle images, thumbnails, centered images, fluid images, and image alignment.