doc(README): add link to GitHub Pages docs

Author: rouson

README.md

@@ -45,6 +45,10 @@ As compared to the original code, this repository also adds
 3. Documentation generated by [FORD] and deployed to the web via GitHub Actions, and
 4. Quality control via continuous integration testing using GitHub Actions.
 
+Documentation
+-------------
+See [Reference Counter's GitHub Pages site] for HTML documentation generated with [`ford`].
+
 Compiler Status
 ---------------
 Correct execution of the Reference Counter library code requires comprehensive
@@ -94,3 +98,4 @@ fpm test --compiler ifort --flag -coarray=shared
 [Fortran Package Manager]: https://github.com/fortran-lang/fpm
 [Vegetables]: https://gitlab.com/everythingfunctional/vegetables
 [FORD]: https://github.com/Fortran-FOSS-Programmers/ford
+[Reference Counter's GitHub Pages site]: https://sourceryinstitute.github.io/reference-counter