Found the following HTML validation problems:
AuthState-class.html:441:1 (AuthState-class.Rd:260): Warning: missing </ul> before </div>
AuthState-class.html:194:1 (AuthState-class.Rd:115): Warning: <h5> anchor "Usage" already defined
AuthState-class.html:200:1 (AuthState-class.Rd:119): Warning: <h5> anchor "Arguments" already defined
AuthState-class.html:223:1 (AuthState-class.Rd:132): Warning: <h5> anchor "Usage" already defined
AuthState-class.html:229:1 (AuthState-class.Rd:136): Warning: <h5> anchor "Arguments" already defined
AuthState-class.html:253:1 (AuthState-class.Rd:150): Warning: <h5> anchor "Usage" already defined
AuthState-class.html:259:1 (AuthState-class.Rd:154): Warning: <h5> anchor "Arguments" already defined
AuthState-class.html:282:1 (AuthState-class.Rd:167): Warning: <h5> anchor "Usage" already defined
AuthState-class.html:288:1 (AuthState-class.Rd:171): Warning: <h5> anchor "Arguments" already defined
AuthState-class.html:311:1 (AuthState-class.Rd:184): Warning: <h5> anchor "Usage" already defined
AuthState-class.html:317:1 (AuthState-class.Rd:188): Warning: <h5> anchor "Arguments" already defined
AuthState-class.html:341:1 (AuthState-class.Rd:202): Warning: <h5> anchor "Usage" already defined
AuthState-class.html:347:1 (AuthState-class.Rd:206): Warning: <h5> anchor "Arguments" already defined
AuthState-class.html:370:1 (AuthState-class.Rd:219): Warning: <h5> anchor "Usage" already defined
AuthState-class.html:386:1 (AuthState-class.Rd:229): Warning: <h5> anchor "Usage" already defined
AuthState-class.html:402:1 (AuthState-class.Rd:239): Warning: <h5> anchor "Usage" already defined
AuthState-class.html:418:1 (AuthState-class.Rd:249): Warning: <h5> anchor "Usage" already defined
AuthState-class.html:424:1 (AuthState-class.Rd:253): Warning: <h5> anchor "Arguments" already defined
Gargle-class.html:355:1 (Gargle-class.Rd:213): Warning: missing </ul> before </div>
Gargle-class.html:194:1 (Gargle-class.Rd:118): Warning: <h5> anchor "Usage" already defined
Gargle-class.html:200:1 (Gargle-class.Rd:122): Warning: <h5> anchor "Arguments" already defined
Gargle-class.html:223:1 (Gargle-class.Rd:135): Warning: <h5> anchor "Usage" already defined
Gargle-class.html:229:1 (Gargle-class.Rd:139): Warning: <h5> anchor "Arguments" already defined
Gargle-class.html:252:1 (Gargle-class.Rd:152): Warning: <h5> anchor "Usage" already defined
Gargle-class.html:268:1 (Gargle-class.Rd:162): Warning: <h5> anchor "Usage" already defined
Gargle-class.html:284:1 (Gargle-class.Rd:172): Warning: <h5> anchor "Usage" already defined
Gargle-class.html:300:1 (Gargle-class.Rd:182): Warning: <h5> anchor "Usage" already defined
Gargle-class.html:316:1 (Gargle-class.Rd:192): Warning: <h5> anchor "Usage" already defined
Gargle-class.html:332:1 (Gargle-class.Rd:202): Warning: <h5> anchor "Usage" already defined
Gargle-class.html:338:1 (Gargle-class.Rd:206): Warning: <h5> anchor "Arguments" already defined
GceToken.html:334:1 (GceToken.Rd:184): Warning: missing </ul> before </div>
GceToken.html:140:1 (GceToken.Rd:68): Warning: <h5> anchor "Usage" already defined
GceToken.html:157:1 (GceToken.Rd:79): Warning: <h5> anchor "Usage" already defined
GceToken.html:173:1 (GceToken.Rd:89): Warning: <h5> anchor "Usage" already defined
GceToken.html:189:1 (GceToken.Rd:99): Warning: <h5> anchor "Usage" already defined
GceToken.html:195:1 (GceToken.Rd:103): Warning: <h5> anchor "Arguments" already defined
GceToken.html:218:1 (GceToken.Rd:116): Warning: <h5> anchor "Usage" already defined
GceToken.html:224:1 (GceToken.Rd:120): Warning: <h5> anchor "Arguments" already defined
GceToken.html:247:1 (GceToken.Rd:133): Warning: <h5> anchor "Usage" already defined
GceToken.html:263:1 (GceToken.Rd:143): Warning: <h5> anchor "Usage" already defined
GceToken.html:279:1 (GceToken.Rd:153): Warning: <h5> anchor "Usage" already defined
GceToken.html:295:1 (GceToken.Rd:163): Warning: <h5> anchor "Usage" already defined
GceToken.html:311:1 (GceToken.Rd:173): Warning: <h5> anchor "Usage" already defined
GceToken.html:317:1 (GceToken.Rd:177): Warning: <h5> anchor "Arguments" already defined
WifToken.html:334:1 (WifToken.Rd:184): Warning: missing </ul> before </div>
WifToken.html:140:1 (WifToken.Rd:68): Warning: <h5> anchor "Usage" already defined
WifToken.html:157:1 (WifToken.Rd:79): Warning: <h5> anchor "Usage" already defined
WifToken.html:173:1 (WifToken.Rd:89): Warning: <h5> anchor "Usage" already defined
WifToken.html:179:1 (WifToken.Rd:93): Warning: <h5> anchor "Arguments" already defined
WifToken.html:202:1 (WifToken.Rd:106): Warning: <h5> anchor "Usage" already defined
WifToken.html:208:1 (WifToken.Rd:110): Warning: <h5> anchor "Arguments" already defined
WifToken.html:231:1 (WifToken.Rd:123): Warning: <h5> anchor "Usage" already defined
WifToken.html:247:1 (WifToken.Rd:133): Warning: <h5> anchor "Usage" already defined
WifToken.html:263:1 (WifToken.Rd:143): Warning: <h5> anchor "Usage" already defined
WifToken.html:279:1 (WifToken.Rd:153): Warning: <h5> anchor "Usage" already defined
WifToken.html:295:1 (WifToken.Rd:163): Warning: <h5> anchor "Usage" already defined
WifToken.html:311:1 (WifToken.Rd:173): Warning: <h5> anchor "Usage" already defined
WifToken.html:317:1 (WifToken.Rd:177): Warning: <h5> anchor "Arguments" already defined
gce_access_token.html:61:1 (gce_access_token.Rd:23): Warning: missing </ul> before </div>
oauth_app_from_json.html:63:1 (oauth_app_from_json.Rd:18): Warning: missing </ul> before </div>
oauth_external_token.html:70:1 (oauth_external_token.Rd:32): Warning: missing </ul> before </div>