update to contributors and ideas files

docs/README.md

@@ -4,6 +4,7 @@ Here some ideas for improving this tiny engine:
 
 ## Rendering
 - [ ] replace the OpenGL renderer with a Vulkan backend
+- [ ] add sprite atlas support (test case Kenny flappy bird)
 - [ ] add animatable sprites (access to UV mapping and tiling)
 - [ ] add a SDF based renderer (parametric tiles and font rendering)
 
@@ -15,11 +16,11 @@ Here some ideas for improving this tiny engine:
 ## System Level
 
 - [ ] add a `Asset` handler to load cache and manage assets
-- [ ] introspection of file system if we load assset
+- [ ] introspection of file system if we load asset
 
 ## Design
 
-- [ ] replace some of the 'unkown source' assets
+- [ ] replace some of the 'unknown source' assets
 
 ## Build / Dev Support
 - [ ] add a test rig either with Snitch or Catch2
@@ -27,10 +28,11 @@ Here some ideas for improving this tiny engine:
 - [ ] add CPU and GPU benchmarks to address various issues
 
 
-# Issues
+# Performance
 
+For such a small engine, this should never happen:
 
-```sh
+```bash
  Performance counter stats for 'bin/paradiso_pong':
 
             555,35 msec task-clock:u                     #    0,042 CPUs utilized