Major Description
Currently the HttpClient javadoc in https://hc.apache.org/httpcomponents-client-5.2.x/current/httpclient5/apidocs/ or https://hc.apache.org/httpcomponents-client-5.3.x/current/httpclient5/apidocs/ don't link to the HttpComponents Core javadoc.
That makes it very uncomfortable for consumers, e.g. when looking at https://hc.apache.org/httpcomponents-client-5.2.x/current/httpclient5/apidocs/org/apache/hc/client5/http/classic/HttpClient.html#execute-org.apache.hc.core5.http.HttpHost-org.apache.hc.core5.http.ClassicHttpRequest-org.apache.hc.core5.http.protocol.HttpContext-org.apache.hc.core5.http.io.HttpClientResponseHandler- all parameter types are defined in Core but not linked.
One can use the javadoc option -link to generate links to existing javadoc sites: https://docs.oracle.com/javase/8/docs/technotes/tools/windows/javadoc.html#CHDEDJFI. That would be ver
