Updated test cases documentation

docs/test_cases/t20015.md

@@ -1,21 +1,18 @@
 # t20015 - Class exclusion by namespace in sequence diagram test case
 ## Config
 ```yaml
-compilation_database_dir: ..
-output_directory: diagrams
 diagrams:
   t20015_sequence:
     type: sequence
     glob:
-      - ../../tests/t20015/t20015.cc
+      - t20015.cc
     include:
       namespaces:
         - clanguml::t20015
     exclude:
       namespaces:
         - clanguml::t20015::detail
-    using_namespace:
-      - clanguml::t20015
+    using_namespace: clanguml::t20015
     from:
       - function: "clanguml::t20015::tmain()"
 ```
@@ -71,11 +68,6 @@ void tmain()
 ```json
 {
   "diagram_type": "sequence",
-  "metadata": {
-    "clang_uml_version": "0.4.1-11-g39d3e1f",
-    "llvm_version": "Ubuntu clang version 16.0.6 (++20230710042027+7cbf1a259152-1~exp1~20230710162048.105)",
-    "schema_version": 1
-  },
   "name": "t20015_sequence",
   "participants": [
     {
@@ -83,9 +75,9 @@ void tmain()
       "name": "clanguml::t20015::tmain()",
       "source_location": {
         "column": 6,
-        "file": "../../tests/t20015/t20015.cc",
+        "file": "t20015.cc",
         "line": 31,
-        "translation_unit": "../../tests/t20015/t20015.cc"
+        "translation_unit": "t20015.cc"
       },
       "type": "function"
     },
@@ -94,9 +86,9 @@ void tmain()
       "name": "clanguml::t20015::B",
       "source_location": {
         "column": 7,
-        "file": "../../tests/t20015/t20015.cc",
+        "file": "t20015.cc",
         "line": 21,
-        "translation_unit": "../../tests/t20015/t20015.cc"
+        "translation_unit": "t20015.cc"
       },
       "type": "class"
     }
@@ -116,9 +108,9 @@ void tmain()
           "scope": "normal",
           "source_location": {
             "column": 5,
-            "file": "../../tests/t20015/t20015.cc",
+            "file": "t20015.cc",
             "line": 37,
-            "translation_unit": "../../tests/t20015/t20015.cc"
+            "translation_unit": "t20015.cc"
           },
           "to": {
             "activity_id": "431575772398797060",