TiDB Operator 1.0 Beta.1 P2 Release Notes

TiDB Operator version: 1.0.0-beta.1-p2

• New algorithm for scheduler HA predicate (#260)
• Serial scheduling ()
• Change tolerations type to an array (#271)
• Add code coverage icon ()
• In , omit just the empty leaves (#273)
• Add ClusterIDLabelKey label to TidbCluster ()