fix: if the path is equal to just a single slash do not count it as a violation

Author: efebeydogan01

src/main/java/cli/rule/rules/TrailingRule.java

@@ -74,8 +74,14 @@ private List<Violation> checkForTrailingSlashes(Set<String> paths) {
         for (String path : paths) {
             Output.progressPercentage(curPath, totalPaths);
             curPath++;
+            // if the path is the root path, skip it
+            // see https://github.com/restful-ma/rest-ruler/issues/52 for more information
+            if (path.equals("/")) {
+                continue;
+            }
             if (path.endsWith("/")) {
-                violations.add(new Violation(this, RestAnalyzer.locMapper.getLOCOfPath(path), ImprovementSuggestion.TRAILING_SLASH,
+                violations.add(new Violation(this, RestAnalyzer.locMapper.getLOCOfPath(path),
+                        ImprovementSuggestion.TRAILING_SLASH,
                         path, ErrorMessage.TRAILINGSLASH));
             }
         }

src/test/java/cli/rule/tunnelingTests/InvalidOpenAPITrailingRule.json

@@ -60,6 +60,16 @@
     }
   ],
   "paths": {
+    "/": {
+      "get": {
+        "description": "Root endpoint",
+        "responses": {
+          "200": {
+            "description": "OK"
+          }
+        }
+      }
+    },
     "/getadult/": {
       "post": {
         "consumes": [