Fix incorrect SurfaceTool example in class docs
Fix incorrect SurfaceTool example in class docs

pkowal1982/godot,vkbsb/godot,Valentactive/godot,vkbsb/godot,josempans/godot,godotengine/godot,Zylann/godot,BastiaanOlij/godot,sanikoyes/godot,Zylann/godot,pkowal1982/godot,Valentactive/godot,pkowal1982/godot,BastiaanOlij/godot,godotengine/godot,akien-mga/godot,BastiaanOlij/godot,BastiaanOlij/godot,vkbsb/godot,godotengine/godot,godotengine/godot,akien-mga/godot,firefly2442/godot,ZuBsPaCe/godot,Valentactive/godot,pkowal1982/godot,Zylann/godot,Shockblast/godot,guilhermefelipecgs/godot,akien-mga/godot,guilhermefelipecgs/godot,josempans/godot,josempans/godot,BastiaanOlij/godot,Valentactive/godot,pkowal1982/godot,firefly2442/godot,Shockblast/godot,Zylann/godot,Zylann/godot,Valentactive/godot,Faless/godot,godotengine/godot,vkbsb/godot,akien-mga/godot,Faless/godot,Zylann/godot,josempans/godot,akien-mga/godot,Shockblast/godot,sanikoyes/godot,pkowal1982/godot,BastiaanOlij/godot,josempans/godot,BastiaanOlij/godot,vkbsb/godot,firefly2442/godot,Faless/godot,sanikoyes/godot,Zylann/godot,ZuBsPaCe/godot,Shockblast/godot,Valentactive/godot,guilhermefelipecgs/godot,josempans/godot,firefly2442/godot,ZuBsPaCe/godot,akien-mga/godot,ZuBsPaCe/godot,Faless/godot,guilhermefelipecgs/godot,josempans/godot,ZuBsPaCe/godot,akien-mga/godot,akien-mga/godot,Shockblast/godot,ZuBsPaCe/godot,sanikoyes/godot,firefly2442/godot,Shockblast/godot,Valentactive/godot,pkowal1982/godot,firefly2442/godot,Faless/godot,Shockblast/godot,vkbsb/godot,firefly2442/godot,sanikoyes/godot,godotengine/godot,ZuBsPaCe/godot,sanikoyes/godot,Faless/godot,BastiaanOlij/godot,josempans/godot,guilhermefelipecgs/godot,Faless/godot,firefly2442/godot,vkbsb/godot,sanikoyes/godot,guilhermefelipecgs/godot,godotengine/godot,ZuBsPaCe/godot,Shockblast/godot,guilhermefelipecgs/godot,godotengine/godot,Zylann/godot,sanikoyes/godot,pkowal1982/godot,guilhermefelipecgs/godot,vkbsb/godot,Faless/godot,Valentactive/godot