Found the following HTML validation problems:
Beakr.html:103:1 (Beakr.Rd:54): Warning: <h5> anchor "Usage" already defined
Beakr.html:119:1 (Beakr.Rd:64): Warning: <h5> anchor "Usage" already defined
Beakr.html:153:1 (Beakr.Rd:86): Warning: <h5> anchor "Usage" already defined
Beakr.html:169:1 (Beakr.Rd:96): Warning: <h5> anchor "Usage" already defined
Beakr.html:175:1 (Beakr.Rd:100): Warning: <h5> anchor "Arguments" already defined
Error.html:116:1 (Error.Rd:62): Warning: <h5> anchor "Usage" already defined
Error.html:122:1 (Error.Rd:66): Warning: <h5> anchor "Arguments" already defined
Listener.html:109:1 (Listener.Rd:60): Warning: <h5> anchor "Usage" already defined
Listener.html:115:1 (Listener.Rd:64): Warning: <h5> anchor "Arguments" already defined
Middleware.html:116:1 (Middleware.Rd:67): Warning: <h5> anchor "Usage" already defined
Middleware.html:122:1 (Middleware.Rd:71): Warning: <h5> anchor "Arguments" already defined
Request.html:132:1 (Request.Rd:75): Warning: <h5> anchor "Usage" already defined
Request.html:138:1 (Request.Rd:79): Warning: <h5> anchor "Arguments" already defined
Request.html:161:1 (Request.Rd:92): Warning: <h5> anchor "Usage" already defined
Request.html:167:1 (Request.Rd:96): Warning: <h5> anchor "Arguments" already defined
Request.html:192:1 (Request.Rd:111): Warning: <h5> anchor "Usage" already defined
Request.html:198:1 (Request.Rd:115): Warning: <h5> anchor "Arguments" already defined
Request.html:221:1 (Request.Rd:128): Warning: <h5> anchor "Usage" already defined
Request.html:227:1 (Request.Rd:132): Warning: <h5> anchor "Arguments" already defined
Request.html:250:1 (Request.Rd:145): Warning: <h5> anchor "Usage" already defined
Request.html:256:1 (Request.Rd:149): Warning: <h5> anchor "Arguments" already defined
Response.html:134:1 (Response.Rd:69): Warning: <h5> anchor "Usage" already defined
Response.html:140:1 (Response.Rd:73): Warning: <h5> anchor "Arguments" already defined
Response.html:163:1 (Response.Rd:86): Warning: <h5> anchor "Usage" already defined
Response.html:169:1 (Response.Rd:90): Warning: <h5> anchor "Arguments" already defined
Response.html:192:1 (Response.Rd:103): Warning: <h5> anchor "Usage" already defined
Response.html:198:1 (Response.Rd:107): Warning: <h5> anchor "Arguments" already defined
Response.html:221:1 (Response.Rd:120): Warning: <h5> anchor "Usage" already defined
Response.html:227:1 (Response.Rd:124): Warning: <h5> anchor "Arguments" already defined
Response.html:250:1 (Response.Rd:137): Warning: <h5> anchor "Usage" already defined
Response.html:256:1 (Response.Rd:141): Warning: <h5> anchor "Arguments" already defined
Response.html:281:1 (Response.Rd:156): Warning: <h5> anchor "Usage" already defined
Response.html:287:1 (Response.Rd:160): Warning: <h5> anchor "Arguments" already defined
Response.html:310:1 (Response.Rd:173): Warning: <h5> anchor "Usage" already defined
Response.html:316:1 (Response.Rd:177): Warning: <h5> anchor "Arguments" already defined
Response.html:339:1 (Response.Rd:190): Warning: <h5> anchor "Usage" already defined
Response.html:345:1 (Response.Rd:194): Warning: <h5> anchor "Arguments" already defined
Response.html:372:1 (Response.Rd:211): Warning: <h5> anchor "Usage" already defined
Response.html:378:1 (Response.Rd:215): Warning: <h5> anchor "Arguments" already defined
Router.html:114:1 (Router.Rd:59): Warning: <h5> anchor "Usage" already defined
Router.html:120:1 (Router.Rd:63): Warning: <h5> anchor "Arguments" already defined
Router.html:143:1 (Router.Rd:76): Warning: <h5> anchor "Usage" already defined
Router.html:149:1 (Router.Rd:80): Warning: <h5> anchor "Arguments" already defined
Router.html:174:1 (Router.Rd:95): Warning: <h5> anchor "Usage" already defined
Router.html:180:1 (Router.Rd:99): Warning: <h5> anchor "Arguments" already defined
Router.html:207:1 (Router.Rd:116): Warning: <h5> anchor "Usage" already defined
Router.html:213:1 (Router.Rd:120): Warning: <h5> anchor "Arguments" already defined