HTCondorWiki: Add Config Params

 customization=seldom
 friendly_name=Schedd
 usage=Where are the binaries for these daemons?
-url=http://cs.wisc.edu/condor/manual/v7.1/3_3Configuration.html#SECTION
+url=http://cs.wisc.edu/condor/manual/v7.3/3_3Configuration.html#SECTION
 tags=master,master
 id=552
 {endverbatim}
 
-The attributes that you really need to care about are *default, type, usage, friendly_name*, and *tags*. If you can predict *customization* and *reconfig*, which take values =seldom=, =often=, =always=, and =true= on a reconfig, =false= otherwise, respectively, then fill that in as well. The others can be held constant when you make a new entry by copying the snippet above and changing it.
+The attributes that you really need to care about are *default, type, usage, friendly_name*, *url*, and *tags*. If you can predict *customization* and *reconfig*, which take values =seldom=, =often=, =always=, and =true= on a reconfig, =false= otherwise, respectively, then fill that in as well. The others can be held constant when you make a new entry by copying the snippet above and changing it. Please make sure the above entries are defined. For *url* just leave it be the example set forth above.
 
 The machinery which uses the above information is not yet complete, this is why things like the *id* field can be left as it is among the other things. Also, *no extraneous whitespace*. You've been warned.