Add homepage and description to manifest

Author: ivan-pi

fpm.toml

@@ -4,6 +4,8 @@ license = "MIT"
 author = "fpm maintainers"
 maintainer = ""
 copyright = "2020-2025 fpm contributors"
+homepage = "https://fpm.fortran-lang.org/"
+description = "Fortran Package Manager"
 
 [preprocess]
 [preprocess.cpp]