adding isort.cfg skip

Author: Azfaar Qureshi

.isort.cfg

@@ -13,6 +13,6 @@ line_length=79
 ; docs: https://github.com/timothycrosley/isort#multi-line-output-modes
 multi_line_output=3
 skip=target
-skip_glob=**/gen/*,.venv*/*,venv*/*,reference*/*,opentelemetry-python-core/*
+skip_glob=**/gen/*,.venv*/*,venv*/*,reference*/*,opentelemetry-python-core/*,*.yml,*.md,Dockerfile
 known_first_party=opentelemetry
 known_third_party=psutil,pytest,redis,redis_opentracing