I'm interested in learning about Markus Lanthaler's professional focus and seeing examples of his code. Can you tell me his primary area of expertise and provide the best link to view his code contributions?
Navigate to me.markus-lanthaler.com Locate and read the section describing Markus Lanthaler's professional background or expertise. Identify his primary area of expertise. Locate the section containing external links or contact information. Identify the link most suitable for viewing code contributions. Extract the URL of the identified link.
State that Markus Lanthaler's primary expertise is in 'Semantic Web technologies, Linked Data, and Web APIs'. Identify 'GitHub' as the most appropriate external link for viewing code contributions. Provide the exact URL for his GitHub profile: 'https://github.com/markuslanthaler'.