Fixed slice on delete reducer

src/reducers/crud.js

@@ -42,7 +42,7 @@ function updateDoc(routeDocs, index, id, pending, fields = {}) {
 }
 
 function deleteDoc(docs, index) {
-    return docs.slice(0, index - 1)
+    return docs.slice(0, index)
         .concat(docs.slice(index + 1));
 }