Fix Unicode URL link tags to render correctly.
Fix Unicode URL link tags to render correctly.

Change incorrect `[/code]` closing tags to `[/url]` tags.

The `url` tags for the links to the Unicode code points information use `[/code]` rather than `[/url]` to close them.

This results in the links being rendered incorrectly in the IDE--the entire rest of the documentation for each method gets turned into a giant underlined link.

This issue was introduced in https://github.com/godotengine/godot/commit/a2271ba3bdaa5fab0f6518a2445b839d36e283eb.
josempans/godot,pkowal1982/godot,vkbsb/godot,Shockblast/godot,DmitriySalnikov/godot,ZuBsPaCe/godot,vkbsb/godot,pkowal1982/godot,vkbsb/godot,vkbsb/godot,vnen/godot,Zylann/godot,vkbsb/godot,Faless/godot,Faless/godot,Shockblast/godot,honix/godot,Zylann/godot,BastiaanOlij/godot,josempans/godot,godotengine/godot,ZuBsPaCe/godot,guilhermefelipecgs/godot,ZuBsPaCe/godot,DmitriySalnikov/godot,ZuBsPaCe/godot,akien-mga/godot,godotengine/godot,Shockblast/godot,akien-mga/godot,akien-mga/godot,vnen/godot,Valentactive/godot,firefly2442/godot,guilhermefelipecgs/godot,akien-mga/godot,akien-mga/godot,josempans/godot,DmitriySalnikov/godot,Faless/godot,guilhermefelipecgs/godot,vnen/godot,BastiaanOlij/godot,godotengine/godot,godotengine/godot,pkowal1982/godot,josempans/godot,DmitriySalnikov/godot,pkowal1982/godot,josempans/godot,guilhermefelipecgs/godot,honix/godot,Zylann/godot,Zylann/godot,vkbsb/godot,Valentactive/godot,firefly2442/godot,sanikoyes/godot,Valentactive/godot,Shockblast/godot,guilhermefelipecgs/godot,vkbsb/godot,Shockblast/godot,godotengine/godot,akien-mga/godot,ZuBsPaCe/godot,firefly2442/godot,honix/godot,ZuBsPaCe/godot,Shockblast/godot,vnen/godot,Shockblast/godot,Valentactive/godot,Zylann/godot,ZuBsPaCe/godot,BastiaanOlij/godot,Faless/godot,ZuBsPaCe/godot,sanikoyes/godot,honix/godot,Valentactive/godot,sanikoyes/godot,BastiaanOlij/godot,vnen/godot,guilhermefelipecgs/godot,Valentactive/godot,Shockblast/godot,josempans/godot,BastiaanOlij/godot,Zylann/godot,DmitriySalnikov/godot,vnen/godot,firefly2442/godot,pkowal1982/godot,sanikoyes/godot,firefly2442/godot,pkowal1982/godot,josempans/godot,firefly2442/godot,josempans/godot,Faless/godot,Faless/godot,vnen/godot,firefly2442/godot,Faless/godot,pkowal1982/godot,godotengine/godot,firefly2442/godot,honix/godot,sanikoyes/godot,honix/godot,godotengine/godot,Valentactive/godot,vnen/godot,guilhermefelipecgs/godot,sanikoyes/godot,Zylann/godot,Faless/godot,sanikoyes/godot,sanikoyes/godot,BastiaanOlij/godot,BastiaanOlij/godot,guilhermefelipecgs/godot,akien-mga/godot,vkbsb/godot,pkowal1982/godot,akien-mga/godot,godotengine/godot,DmitriySalnikov/godot,Valentactive/godot,BastiaanOlij/godot,DmitriySalnikov/godot,Zylann/godot