Add other package references

README.md

@@ -149,6 +149,18 @@ piper('array_intersect', [0 => 'ADE'])
 
 > Api implementation to be decided
 
+## Additional Information
+
+Be aware that this package is part of a series of Proof of concept so best practices might not be the top priority.
+
+See other packages in this series here:
+
+- https://github.com/omitobi/conditional [A smart PHP if...elseif...else statement]
+- https://github.com/transprime-research/attempt [A smart PHP try...catch statement]
+- https://github.com/omitobi/corbonate [A smart Carbon + Collection package]
+- https://github.com/omitobi/laravel-habitue [Jsonable Http Request(er) package with Collections response]
+- https://github.com/transprime-research/arrayer [Array now an object]
+
 ## Similar packages
 
 - https://packagist.org/packages/yuyat/piper