README: fix line link syntax
MODIFY
README.md
README.md
@@ -18,7 +18,7 @@ go get -u gonum.org/v1/gonum/...
## Supported Go versions
-Gonum supports and tests using the gc compiler on the [two most recent Go releases](https://github.com/gonum/gonum/blob/master/.github/workflows/ci.yml#L14-15) on Linux (386, amd64 and arm64), macOS and Windows (both on amd64).
+Gonum supports and tests using the gc compiler on the [two most recent Go releases](https://github.com/gonum/gonum/blob/master/.github/workflows/ci.yml#L14-L15) on Linux (386, amd64 and arm64), macOS and Windows (both on amd64).
## Release schedule

README: fix line link syntax