doc: fix unclosed bold markup in autodiscover.7

Author: jengelh

doc/autodiscover.7

@@ -43,7 +43,7 @@ obtained from "serviceBindingInformation" attributes.
 .IP \(bu 4
 "Root domain" method: Constructing a string based on the user's e-mail address
 (e.g. [email protected]),
-<\fBhttps://\fIexample.com\fP\fB/autodiscover/autodiscover.xml\fP>.
+<\fBhttps://\fP\fIexample.com\fP\fB/autodiscover/autodiscover.xml\fP>.
 .IP \(bu 4
 "AutoDiscover domain" method: Constructing a string based on the user identity,
 <\fBhttps://autodiscover.\fP\fIexample.com\fP\fB/autodiscover/autodiscover.xml\fP>.