Fix links to reference manual
@@ -220,7 +220,7 @@ It exposes the same methods as its parent class.
[shared_module]: Reference-manual.md#shared_module
[external program]: Reference-manual.md#external-program-object
[dependency]: Reference-manual.md#dependency
-[install_data]: Reference-manual.md#install-data
-[configure_file]: Reference-manual.md#configure-file
+[install_data]: Reference-manual.md#install_data
+[configure_file]: Reference-manual.md#configure_file
[dependency object]: Reference-manual.md#dependency-object
[buildtarget object]: Reference-manual.md#build-target-object
