Fix documentation

c++/src/capnp/compat/json.h

@@ -48,9 +48,9 @@ class JsonCodec {
   // - When encoding, all primitive fields are always encoded, even if default-valued. Pointer
   //   fields are only encoded if they are non-null.
   // - 64-bit integers are encoded as strings, since JSON "numbers" are double-precision floating
+  //   points which cannot store a 64-bit integer without losing data.
   // - NaNs and infinite floating point numbers are not allowed by the JSON spec, and so are encoded
   //   as null. This matches the behavior of `JSON.stringify` in at least Firefox and Chrome.
-  //   points which cannot store a 64-bit integer without losing data.
   // - Data is encoded as an array of numbers in the range [0,255]. You probably want to register
   //   a handler that does something better, like maybe base64 encoding, but there are a zillion
   //   different ways people do this.