Attempt to fix two codacy warnings

Author: egonw

README.apache-config.md

@@ -2,7 +2,9 @@
 
 Currently runs on <https://qlever.scholia.wiki> and
 <https://wikidata-query-gui.scholia.wiki> with the following
-Apache configurations:
+Apache configurations.
+
+## qlever.scholia.wiki
 
 ```apache
 <VirtualHost *:443>
@@ -30,6 +32,8 @@ Apache configurations:
 </VirtualHost>
 ```
 
+## wikidata-query-gui.scholia.wiki
+
 ```apache
 <VirtualHost *:443>
   ServerName wikidata-query-gui.scholia.wiki 

scholia/app/static/scholia.js

@@ -493,9 +493,9 @@ function sparqlToDataTable2(url, editURL, sparql, element, filename, options = {
             $('#' + loaderID).remove(); // remove loader
             let error_message = "";
             try {
-              error_message = "QLever execption: " + JSON.parse(jqXHR.responseText).exception;
+                error_message = "QLever execption: " + JSON.parse(jqXHR.responseText).exception;
             } catch (e) {
-              error_message = "getJSON query failed: " + textStatus + " " + errorThrown;
+                error_message = "getJSON query failed: " + textStatus + " " + errorThrown;
             }
             $(element).prepend("<p style='color:red;'>" + escapeHTML(error_message) + "</p>");
             const reloadButton = document.getElementById(element.slice(1) + '-reload');