fix links to source on html page

Author: jsgoller1

elements-of-programming-interviews/html/js/helpers.js

@@ -78,9 +78,9 @@ function translateProblemMappings(data) {
     function translateProblem(name, data) {
         let result = {
             name: name,
-            cpp: translateLanguageEntry('C++', 'epi_judge_cpp/', data),
+            cpp: translateLanguageEntry('C++', 'cpp/', data),
             java: translateLanguageEntry('Java', 'epi_judge_java/epi/', data),
-            python: translateLanguageEntry('Python', 'epi_judge_python/', data)
+            python: translateLanguageEntry('Python', 'python/', data)
         };
         if (result.cpp || result.java || result.python) {
             return result;
@@ -132,4 +132,4 @@ function translateProblemMappings(data) {
     }
 
     return chapters
-}
+}