Documentation Update

[proc-gen]

Something I noticed when upgrading to 1.2.7. We no longer use in Entity entity, but rather just Entity entity.

Ex.

world.Query(in query, (in Entity entity) =>
{
   // Do things
});

then becomes

world.Query(in query, (Entity entity) =>
{
   // Do things
});

Just wanted to make everyone aware since the old version is still in the wiki.

[genaray]

Done, thanks! :)