code: def find_and_replace(self, node):
      
      if isinstance(node, nodes.reference) and 'refuri' in node:
        reference_uri = node['refuri']
        if reference_uri.endswith('.md') and not reference_uri.startswith('http'):
          reference_uri = reference_uri[:-3] + '.html'
          node['refuri'] = reference_uri
        else:
          match = self.ANCHOR_REGEX.match(reference_uri)
          if match:
            node['refuri'] = '{0:s}.html#{1:s}'.format(
                match.group('uri'), match.group('anchor'))
      return node
docs: Parses URIs containing .md and replaces them with their HTML page.
  
      Args:
          node(node): docutils node.
  
      Returns:
        node: docutils node.