access_head             Convert YAML to an accessible header
access_img              Produce an accessible image or chart.
access_rmd              Produce an accessible Rmarkdown file template.
assemble_header         Assemble HTML header output from text provided.
check_compat            Checks if the html doctype is compatible.
check_urls              Check an Rmarkdown for broken links.
detect_html_lang        Searches a file for valid methods of setting
                        HTML lang attribute.
find_all_tags           Find any markdown or HTML syntax tags within
                        read lines.
find_alt_lim            Find alt length limit for specific lang values.
find_theme              Searches YAML head for YAML theme parameters,
                        returning the theme if found.
handle_rmd_path         Check rmd path & file type.
insert_yaml             Insert the required code for the specified toc
                        type.
retrieve_rmds           Find Rmd files within a provided file
                        structure.
return_heading          Return a HTML p tag formatted to resemble a
                        heading tag.
sus_alt                 Check an R markdown document for suspicious alt
                        text.
