Update p_configure_gateway_files.md
Update p_configure_gateway_files.md

Added more substantive titles and xlinks to the "Additional Services" row of the table.
chao-sun-kaazing/gateway,chao-sun-kaazing/gateway,Anisotrop/gateway,a-zuckut/gateway,sanjay-saxena/gateway,danibusu/gateway,cmebarrow/gateway,sanjay-saxena/gateway,AdrianCozma/gateway,danibusu/gateway,nemigaservices/gateway,veschup/gateway,AdrianCozma/gateway,kaazing/gateway,irina-mitrea-luxoft/gateway,DoruM/gateway,michaelcretzman/gateway,biddyweb/gateway,biddyweb/gateway,jfallows/gateway,a-zuckut/gateway,mjolie/gateway,nemigaservices/gateway,cmebarrow/gateway,adrian-galbenus/gateway,vmaraloiu/gateway,adrian-galbenus/gateway,AdrianCozma/gateway,jitsni/gateway,justinma246/gateway,jfallows/gateway,DoruM/gateway,mjolie/gateway,biddyweb/gateway,DoruM/gateway,adrian-galbenus/gateway,cmebarrow/gateway,nemigaservices/gateway,irina-mitrea-luxoft/gateway,justinma246/gateway,mgherghe/gateway,mgherghe/gateway,michaelcretzman/gateway,mgherghe/gateway,dpwspoon/gateway,mjolie/gateway,Anisotrop/gateway,stanculescu/gateway,irina-mitrea-luxoft/gateway,jfallows/gateway,veschup/gateway,nemigaservices/gateway,danibusu/gateway,veschup/gateway,chao-sun-kaazing/gateway,vmaraloiu/gateway,jitsni/gateway,kaazing/gateway,stanculescu/gateway,biddyweb/gateway,dpwspoon/gateway,jitsni/gateway,justinma246/gateway,veschup/gateway,vmaraloiu/gateway,AdrianCozma/gateway,mjolie/gateway,jfallows/gateway,chao-sun-kaazing/gateway,stanculescu/gateway,danibusu/gateway,a-zuckut/gateway,sanjay-saxena/gateway,dpwspoon/gateway,kaazing/gateway,irina-mitrea-luxoft/gateway,justinma246/gateway,a-zuckut/gateway,Anisotrop/gateway,adrian-galbenus/gateway,stanculescu/gateway,vmaraloiu/gateway,kaazing/gateway,DoruM/gateway,michaelcretzman/gateway,jitsni/gateway,cmebarrow/gateway,Anisotrop/gateway,sanjay-saxena/gateway,dpwspoon/gateway,michaelcretzman/gateway,mgherghe/gateway