Add mysql 8

mysql/slack-desc

@@ -0,0 +1,19 @@
+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description. Line
+# up the first '|' above the ':' following the base package name, and the '|'
+# on the right side marks the last column you can put a character in. You must
+# make exactly 11 lines for the formatting to be correct. It's also
+# customary to leave one space after the ':'.
+
+     |-----handy-ruler------------------------------------------------------|
+mysql: mysql (MySQL Database Server)
+mysql:
+mysql: The MySQL software delivers a very fast, multithreaded, multi-user,
+mysql: and robust SQL (Structured Query Language) database server.
+mysql:
+mysql: Homepage: https://dev.mysql.com/
+mysql:
+mysql:
+mysql:
+mysql:
+mysql: