Found the following HTML validation problems:
Plan.html:230:1 (Plan.Rd:339): Warning: <h5> anchor "Usage" already defined
Plan.html:236:1 (Plan.Rd:343): Warning: <h5> anchor "Arguments" already defined
Plan.html:279:1 (Plan.Rd:375): Warning: <h5> anchor "Usage" already defined
Plan.html:285:1 (Plan.Rd:379): Warning: <h5> anchor "Arguments" already defined
Plan.html:300:1 (Plan.Rd:388): Warning: <h5> anchor "Examples" already defined
Plan.html:322:1 (Plan.Rd:405): Warning: <h5> anchor "Usage" already defined
Plan.html:328:1 (Plan.Rd:409): Warning: <h5> anchor "Arguments" already defined
Plan.html:341:1 (Plan.Rd:416): Warning: <h5> anchor "Examples" already defined
Plan.html:363:1 (Plan.Rd:433): Warning: <h5> anchor "Usage" already defined
Plan.html:369:1 (Plan.Rd:437): Warning: <h5> anchor "Arguments" already defined
Plan.html:382:1 (Plan.Rd:444): Warning: <h5> anchor "Examples" already defined
Plan.html:408:1 (Plan.Rd:465): Warning: <h5> anchor "Usage" already defined
Plan.html:414:1 (Plan.Rd:469): Warning: <h5> anchor "Arguments" already defined
Plan.html:433:1 (Plan.Rd:482): Warning: <h5> anchor "Examples" already defined
Plan.html:459:1 (Plan.Rd:503): Warning: <h5> anchor "Usage" already defined
Plan.html:465:1 (Plan.Rd:507): Warning: <h5> anchor "Arguments" already defined
Plan.html:482:1 (Plan.Rd:518): Warning: <h5> anchor "Examples" already defined
Plan.html:509:1 (Plan.Rd:540): Warning: <h5> anchor "Usage" already defined
Plan.html:515:1 (Plan.Rd:544): Warning: <h5> anchor "Arguments" already defined
Plan.html:532:1 (Plan.Rd:555): Warning: <h5> anchor "Examples" already defined
Plan.html:563:1 (Plan.Rd:581): Warning: <h5> anchor "Usage" already defined
Plan.html:569:1 (Plan.Rd:585): Warning: <h5> anchor "Arguments" already defined
Plan.html:608:1 (Plan.Rd:614): Warning: <h5> anchor "Usage" already defined
Plan.html:614:1 (Plan.Rd:618): Warning: <h5> anchor "Arguments" already defined
Plan.html:639:1 (Plan.Rd:633): Warning: <h5> anchor "Usage" already defined
Plan.html:655:1 (Plan.Rd:643): Warning: <h5> anchor "Usage" already defined
Plan.html:671:1 (Plan.Rd:653): Warning: <h5> anchor "Usage" already defined
Plan.html:677:1 (Plan.Rd:657): Warning: <h5> anchor "Arguments" already defined
Plan.html:700:1 (Plan.Rd:670): Warning: <h5> anchor "Usage" already defined
Plan.html:706:1 (Plan.Rd:674): Warning: <h5> anchor "Arguments" already defined
Plan.html:729:1 (Plan.Rd:687): Warning: <h5> anchor "Usage" already defined
Plan.html:735:1 (Plan.Rd:691): Warning: <h5> anchor "Arguments" already defined
Plan.html:758:1 (Plan.Rd:704): Warning: <h5> anchor "Usage" already defined
Plan.html:764:1 (Plan.Rd:708): Warning: <h5> anchor "Arguments" already defined
Plan.html:787:1 (Plan.Rd:721): Warning: <h5> anchor "Usage" already defined
Plan.html:812:1 (Plan.Rd:735): Warning: <h5> anchor "Examples" already defined
Plan.html:833:1 (Plan.Rd:751): Warning: <h5> anchor "Usage" already defined
Plan.html:839:1 (Plan.Rd:755): Warning: <h5> anchor "Arguments" already defined
Plan.html:852:1 (Plan.Rd:762): Warning: <h5> anchor "Returns" already defined
Plan.html:859:1 (Plan.Rd:765): Warning: <h5> anchor "Examples" already defined
Plan.html:889:1 (Plan.Rd:790): Warning: <h5> anchor "Usage" already defined
Plan.html:895:1 (Plan.Rd:794): Warning: <h5> anchor "Arguments" already defined
Plan.html:908:1 (Plan.Rd:801): Warning: <h5> anchor "Returns" already defined
Plan.html:915:1 (Plan.Rd:804): Warning: <h5> anchor "Examples" already defined
Plan.html:945:1 (Plan.Rd:829): Warning: <h5> anchor "Usage" already defined
Plan.html:951:1 (Plan.Rd:833): Warning: <h5> anchor "Returns" already defined
Plan.html:958:1 (Plan.Rd:836): Warning: <h5> anchor "Examples" already defined
Plan.html:988:1 (Plan.Rd:861): Warning: <h5> anchor "Usage" already defined
Plan.html:994:1 (Plan.Rd:865): Warning: <h5> anchor "Arguments" already defined
Plan.html:1011:1 (Plan.Rd:876): Warning: <h5> anchor "Returns" already defined
Plan.html:1018:1 (Plan.Rd:879): Warning: <h5> anchor "Examples" already defined
Plan.html:1049:1 (Plan.Rd:905): Warning: <h5> anchor "Usage" already defined
Plan.html:1055:1 (Plan.Rd:909): Warning: <h5> anchor "Arguments" already defined
Plan.html:1070:1 (Plan.Rd:918): Warning: <h5> anchor "Returns" already defined
Plan.html:1077:1 (Plan.Rd:921): Warning: <h5> anchor "Examples" already defined
Plan.html:1107:1 (Plan.Rd:946): Warning: <h5> anchor "Usage" already defined
Plan.html:1113:1 (Plan.Rd:950): Warning: <h5> anchor "Arguments" already defined
Plan.html:1128:1 (Plan.Rd:959): Warning: <h5> anchor "Returns" already defined
Plan.html:1135:1 (Plan.Rd:962): Warning: <h5> anchor "Examples" already defined
Plan.html:1166:1 (Plan.Rd:988): Warning: <h5> anchor "Usage" already defined
Plan.html:1172:1 (Plan.Rd:992): Warning: <h5> anchor "Arguments" already defined
Plan.html:1185:1 (Plan.Rd:999): Warning: <h5> anchor "Returns" already defined
Plan.html:1192:1 (Plan.Rd:1002): Warning: <h5> anchor "Examples" already defined
Plan.html:1222:1 (Plan.Rd:1027): Warning: <h5> anchor "Usage" already defined
Plan.html:1228:1 (Plan.Rd:1031): Warning: <h5> anchor "Arguments" already defined
Plan.html:1241:1 (Plan.Rd:1038): Warning: <h5> anchor "Returns" already defined
Plan.html:1248:1 (Plan.Rd:1041): Warning: <h5> anchor "Examples" already defined
Plan.html:1278:1 (Plan.Rd:1066): Warning: <h5> anchor "Usage" already defined
Plan.html:1284:1 (Plan.Rd:1070): Warning: <h5> anchor "Arguments" already defined
create_rmarkdown.html:46:1 (create_rmarkdown.Rd:10): Warning: missing </ul> before </div>
set_opts.html:46:1 (set_opts.Rd:10): Warning: missing </ul> before </div>
test_action_fn.html:50:1 (test_action_fn.Rd:12): Warning: missing </ul> before </div>
try_again.html:68:1 (try_again.Rd:24): Warning: missing </ul> before </div>