Add Thanks and Attribution in Readme (#154)

Author: shikokuchuo

README.Rmd

@@ -181,6 +181,7 @@ We would like to acknowledge in particular:
 - The [R Consortium](https://r-consortium.org/) for funding the development of the secure TLS capabilities in the package, and [Henrik Bengtsson](https://github.com/HenrikBengtsson) and [Will Landau](https://github.com/wlandau/)'s roles in making this possible.
 - [Joe Cheng](https://github.com/jcheng5/) for prototyping the integration of `nanonext` with `later` to support the next generation of completely event-driven 'promises'.
 - [Luke Tierney](https://github.com/ltierney/) (R Core) and [Mike Cheng](https://github.com/coolbutuseless) for meticulous documentation of the R serialization mechanism, which led to the package's own implementation of a low-level interface to R serialization.
+- [Travers Ching](https://github.com/traversc) for a novel idea in extending the original custom serialization support in the package.
 - [Jeroen Ooms](https://github.com/jeroen) - for his 'Anticonf (tm)' configure script, on which our original 'configure' was based, although much modified since.
 
 Links:

README.md

@@ -229,6 +229,8 @@ We would like to acknowledge in particular:
   Cheng](https://github.com/coolbutuseless) for meticulous documentation
   of the R serialization mechanism, which led to the package’s own
   implementation of a low-level interface to R serialization.
+- [Travers Ching](https://github.com/traversc) for a novel idea in
+  extending the original custom serialization support in the package.
 - [Jeroen Ooms](https://github.com/jeroen) - for his ‘Anticonf (tm)’
   configure script, on which our original ‘configure’ was based,
   although much modified since.