Update README.md

Author: otan

README.md

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 # cockroachdb-parser
 
 [![Go Reference](https://pkg.go.dev/badge/github.com/cockroachdb/cockroachdb-parser.svg)](https://pkg.go.dev/github.com/cockroachdb/cockroachdb-parser)
-[![Go](https://github.com/cockroachdb/cockroachdb-parser/actions/workflows/go.yml/badge.svg)](https://github.com/cockroachdb/cockroachdb-parser/actions/workflows/go.yml)
+[![Tests](https://github.com/cockroachdb/cockroachdb-parser/actions/workflows/go.yml/badge.svg)](https://github.com/cockroachdb/cockroachdb-parser/actions/workflows/go.yml)
 
 `cockroachdb-parser` is a snapshot of the parser package and
 all its dependencies from the [CockroachDB repo][repo]. The