Update geomsvg.js

MakeSVG function seems to be deprecated, should instead use makeSVG. This example doesn't run on my install unless I make the change (`JSROOT version 6.0.1 1/03/2021`)

Author: lobis

demo/node/geomsvg.js

@@ -8,5 +8,5 @@ console.log('JSROOT version', jsroot.version);
 // r3d_svg uses SVGRenderer, can produce large output
 
 jsroot.httpRequest("https://root.cern/js/files/geom/simple_alice.json.gz", 'object')
-      .then(obj => jsroot.MakeSVG({ object: obj, width: 1200, height: 800 /*, option: "r3d_svg" */ }))
+      .then(obj => jsroot.makeSVG({ object: obj, width: 1200, height: 800 /*, option: "r3d_svg" */ }))
       .then(svg => { fs.writeFileSync("alice_geom.svg", svg); console.log(`Create alice_geom.svg size ${svg.length}`); });