danfickle#8 Update README with new sandbox [ci skip]

README.md

@@ -18,7 +18,7 @@ to get good results. Avoid floats near page breaks and use table layouts.
 + [Integration guide](https://github.com/danfickle/openhtmltopdf/wiki/Integration-Guide) - get maven artifacts and code to get started.
 + [Documentation wiki](https://github.com/danfickle/openhtmltopdf/wiki)
 + [Template Author Guide - PDF - DEPRECATED - Prefer wiki](https://openhtmltopdf.com/template-guide.pdf) - Moving info to wiki
-+ [RC18 Online Sandbox](https://sandbox.openhtmltopdf.com/) - With more samples!
++ [1.0.4 Online Sandbox](https://sandbox.openhtmltopdf.com/) - Now with logs!
 + [Sample Project - Pretty Resume Generator](https://github.com/danfickle/pretty-resume)
 
 ## DIFFERENCES WITH FLYING SAUCER