Added data editor to repos tab, changed some descriptions

src/components/Questions.js

@@ -10,15 +10,16 @@ class Questions extends PureComponent {
 
     return (
       <div>
-        {subjs.map((subj) => {
+        {subjs.map((subj, i) => {
           return (
-            <div>
+            <div key={i}>
               <div className={styles.subjName}>
                 {subj.Name}
               </div>
-              { subj.Questions.map((question) => {
+              { subj.Questions.map((question, i) => {
                 return (
                   <Question
+                    key={i}
                     question={question}
                   />
                 )