Merge pull request #57 from sourceryinstitute/update-readme

doc(README.md): replace "Veggies" with "Sourcery"

Author: rouson

README.md

@@ -52,7 +52,7 @@ uses more descriptive nomenclature for the types and procedures.
 
 This repository also adds
 1. A [Fortran Package Manager] build system,
-2. Tests based on the [Veggies] unit-testing framework,
+2. Tests based on the [Sourcery] library's unit-testing utility,
 3. Documentation generated by [`ford`] and deployed to the web via GitHub Actions, and
 4. Quality control via continuous integration testing using GitHub Actions.
 
@@ -143,3 +143,4 @@ class diagram below of the three derived types in Smart-Pointers.
 [shallow copy]: https://en.wikipedia.org/wiki/Object_copying#Shallow_copy
 [767]: https://github.com/fortran-lang/fpm/issues/767
 [test/README.md#cray]: ./test/README.md#cray
+[Sourcery]: https://github.com/sourceryinstitute/sourcery