Update setup.cfg

Author: ddomingof

setup.cfg

@@ -61,7 +61,7 @@ install_requires =
     tqdm==4.28.1
     compath
     rdflib==4.2.2
-    rdflib-jsonld=0.4.0
+    rdflib-jsonld==0.4.0
     requests==2.21.0
     bio2bel==0.2.1
     bio2bel_hgnc==0.2.2