[CALCITE-1285] Fix client URL template in example config file
[CALCITE-1285] Fix client URL template in example config file

datametica/calcite,looker-open-source/calcite-avatica,jcamachor/calcite,jcamachor/calcite,dindin5258/calcite,julianhyde/calcite,apache/calcite-avatica,datametica/calcite,b-slim/calcite,xhoong/incubator-calcite,looker-open-source/calcite,dindin5258/calcite,yeongwei/incubator-calcite,joshelser/calcite-avatica,arina-ielchiieva/calcite,jcamachor/calcite,vlsi/incubator-calcite,datametica/calcite,yeongwei/incubator-calcite,b-slim/calcite,googleinterns/calcite,arina-ielchiieva/calcite,vlsi/calcite,datametica/calcite,dindin5258/calcite,vlsi/calcite,apache/calcite,xhoong/incubator-calcite,xhoong/incubator-calcite,julianhyde/calcite,sreev/incubator-calcite,googleinterns/calcite,googleinterns/calcite,minji-kim/calcite,looker-open-source/calcite,googleinterns/calcite,datametica/calcite,julianhyde/calcite,vlsi/incubator-calcite,sreev/incubator-calcite,dindin5258/calcite,julianhyde/calcite,apache/calcite-avatica,apache/calcite,looker-open-source/calcite,datametica/calcite,looker-open-source/calcite-avatica,looker-open-source/calcite,jcamachor/calcite,joshelser/calcite-avatica,apache/calcite,vlsi/calcite,googleinterns/calcite,minji-kim/calcite,googleinterns/calcite,minji-kim/calcite,julianhyde/calcite,apache/calcite,joshelser/calcite-avatica,vlsi/calcite,arina-ielchiieva/calcite,looker-open-source/calcite-avatica,dindin5258/calcite,looker-open-source/calcite-avatica,yeongwei/incubator-calcite,arina-ielchiieva/calcite,jcamachor/calcite,looker-open-source/calcite,jcamachor/calcite,dindin5258/calcite,julianhyde/calcite,minji-kim/calcite,apache/calcite,xhoong/incubator-calcite,b-slim/calcite,looker-open-source/calcite-avatica,yeongwei/incubator-calcite,b-slim/calcite,vlsi/calcite,apache/calcite-avatica,b-slim/calcite,arina-ielchiieva/calcite,vlsi/calcite,apache/calcite-avatica,sreev/incubator-calcite,looker-open-source/calcite,apache/calcite,apache/calcite-avatica,sreev/incubator-calcite,minji-kim/calcite