[sr-dev] [kamailio/kamailio] modparam("dialog", … for ims_dialog (Issue #3337)

https://www.kamailio.org/docs/modules/devel/modules/ims_dialog.html contains examples how to configure the module: ``` modparam("ims_dialog", "dlg_extra_hdrs", "Hint: credit expired\r\n") modparam("ims_dialog", "detect_spirals", 1) modparam("dialog", "profiles_with_value", "caller ; my_profile") modparam("dialog", "profiles_no_value", "inbound ; outbound") modparam("dialog", "bridge_controller", "sip:ctd@kamailio.org") ``` and others. As can be seen, the first parameter to modparam() is not consistent in the documentation.

In case really `dialog` shall be used, as the examples show, please spell explicitly in the documentation that `modparam("dialog"` is not a typo. Otherwise please adjust the examples.