README.md: add link to pkg.go.dev

The commit adds a link to https://pkg.go.dev/github.com/ulikunitz/xz as proposed by github user @89z Fixes: Issue #41
ulikunitz · Feb 5, 2021 · 060c89d · 060c89d
1 parent b0e6b5a
commit 060c89d
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/README.md b/README.md
@@ -53,6 +53,10 @@ func main() {
 }
 ```
 
+## Documentation
+
+You can find the documentation on [pkg.go.dev](https://pkg.go.dev/github.com/ulikunitz/xz).
+
 ## Using the gxz compression tool
 
 The package includes a gxz command line utility for compression and