Add code owners for the rocJPEG (#62)

* Add code owners for the rocJPEG

* code clean up

.github/CODEOWNERS

@@ -0,0 +1,6 @@
+* @AryanSalmanpour @rrawther @kiritigowda
+# Documentation files
+docs/ @ROCm/rocm-documentation
+*.md @ROCm/rocm-documentation
+*.rst @ROCm/rocm-documentation
+.readthedocs.yaml @ROCm/rocm-documentation