config.json in trackler-2.0.6.23

- old
+ new

@@ -4,10 +4,43 @@
   "repository": "https://github.com/exercism/xjulia",
   "active": false,
   "test_pattern": "TODO",
   "exercises": [
     {
+      "slug": "hello-world",
+      "difficulty": 1,
+      "topics": [
+        "strings",
+        "string interpolation"
+      ]
+    },
+    {
+      "slug": "hamming",
+      "difficulty": 1,
+      "topics": [
+        "generators",
+        "strings",
+        "exceptions"
+      ]
+    },
+    {
+      "slug": "difference-of-squares",
+      "difficulty": 1,
+      "topics": [
+        "generators"
+      ]
+    },
+    {
+      "slug": "word-count",
+      "difficulty": 1,
+      "topics": [
+        "control-flow (loops)",
+        "arrays",
+        "strings"
+      ]
+    },
+    {
       "slug": "rna-transcription",
       "difficulty": 1,
       "topics": [
         "exception handling",
         "strings",
@@ -31,9 +64,18 @@
         "control-flow (loops)",
         "arrays",
         "strings",
         "sorting",
         "filtering"
+      ]
+    },
+    {
+      "slug": "bob",
+      "difficulty": 2,
+      "topics": [
+        "strings",
+        "unicode",
+        "control-flow (if-else statements)"
       ]
     }
   ],
   "deprecated": [
 