Add archive note (#26)
-rw-r--r-- 1108 .asf.yaml
-rw-r--r-- 6 .gitignore
drwxr-xr-x - 8
-rw-r--r-- 11357 LICENSE
-rw-r--r-- 2488 Makefile
-rw-r--r-- 2719 README.md
drwxr-xr-x - archive
drwxr-xr-x - base
drwxr-xr-x - compose
drwxr-xr-x - java-agent
drwxr-xr-x - oap-server
drwxr-xr-x - ui