Update treefmt.toml

Author: mattalxndr

test/examples/treefmt.toml

@@ -1,4 +1,4 @@
-# One CLI to format the code tree - https://git.numtide.com/numtide/treefmt
+# One CLI to format the code tree - https://github.com/numtide/treefmt
 
 [global]
 excludes = ["*.toml"]
@@ -101,4 +101,4 @@ command = "yamlfmt"
 includes = ["*.yaml"]
 
 [formatter.foo-fmt]
-command = "foo-fmt"
+command = "foo-fmt"