Merge pull request #12 from minuJeong/main

possible missing line in example

examples/gpu_puzzles/run.cpp

@@ -40,6 +40,7 @@ const char *kPuzzle1 = R"(
 @group(0) @binding(1) var<storage, read_write> output : array<f32>;
 @compute @workgroup_size({{workgroupSize}})
 fn main(
+ @builtin(local_invocation_id) LocalInvocationID: vec3<u32>) {
  // Your code here
  }
 )";