refactor: change example json file

.gitignore

@@ -1,6 +1,6 @@
 # Generated by Cargo
 # will have compiled files and executables
-debug/
+# debug/
 target/
 
 # Remove Cargo.lock from gitignore if creating an executable, leave it for libraries

src/test_json/block2poly_example.json

@@ -8,3 +8,4 @@
     }
     }
 }
+}