Fix typo in index.adoc

Author: 1993heqiang

docs/manual/src/docs/asciidoc/_includes/servlet/hello/index.adoc

@@ -67,8 +67,8 @@ A summary of the features follows:
 ** X-Frame-Options integration to help prevent https://en.wikipedia.org/wiki/Clickjacking[Clickjacking]
 * Integrate with the following Servlet API methods:
 ** https://docs.oracle.com/javaee/6/api/javax/servlet/http/HttpServletRequest.html#getRemoteUser()[`HttpServletRequest#getRemoteUser()`]
-** https://docs.oracle.com/javaee/6/api/javax/servlet/http/HttpServletRequest.html#getUserPrincipal()[`HttpServletRequest.html#getUserPrincipal()`]
-** https://docs.oracle.com/javaee/6/api/javax/servlet/http/HttpServletRequest.html#isUserInRole(java.lang.String)[`HttpServletRequest.html#isUserInRole(java.lang.String)`]
-** https://docs.oracle.com/javaee/6/api/javax/servlet/http/HttpServletRequest.html#login(java.lang.String,%20java.lang.String)[`HttpServletRequest.html#login(java.lang.String, java.lang.String)`]
-** https://docs.oracle.com/javaee/6/api/javax/servlet/http/HttpServletRequest.html#logout()[`HttpServletRequest.html#logout()`]
+** https://docs.oracle.com/javaee/6/api/javax/servlet/http/HttpServletRequest.html#getUserPrincipal()[`HttpServletRequest#getUserPrincipal()`]
+** https://docs.oracle.com/javaee/6/api/javax/servlet/http/HttpServletRequest.html#isUserInRole(java.lang.String)[`HttpServletRequest#isUserInRole(java.lang.String)`]
+** https://docs.oracle.com/javaee/6/api/javax/servlet/http/HttpServletRequest.html#login(java.lang.String,%20java.lang.String)[`HttpServletRequest#login(java.lang.String, java.lang.String)`]
+** https://docs.oracle.com/javaee/6/api/javax/servlet/http/HttpServletRequest.html#logout()[`HttpServletRequest#logout()`]