added readme

procprof/README.md

@@ -0,0 +1,23 @@
+# Processing Profiler
+
+## Preparation
+
+Extract some camera images and dump them:
+
+```bash
+./make_example_images.py -i /some/measured_data.CAMERAS.h5 -c SOME-CAMERA
+```
+
+## Profiling
+
+Profile a processing script using the example images:
+
+```bash
+./procprof.py a_processing_script.py example_images.npy
+```
+
+Profiling output files are written to `./prof/`.
+
+Check `-h` on both scripts for more options. 
+
+