backport of commit b2870dd23f (#23780)

Co-authored-by: John-Michael Faircloth <fairclothjm@users.noreply.github.com>

website/content/docs/plugins/plugin-development.mdx

@@ -75,7 +75,7 @@ func main() {
 And that's basically it! You would just need to change `myPlugin` to your actual
 plugin.
 
-## Plugin backwards compatibility with Vault
+### Plugin backwards compatibility with Vault
 
 Let's take a closer look at a snippet from the above main package.
 
@@ -113,6 +113,25 @@ instead implement the
 [`PluginVersioner`](https://github.com/hashicorp/vault/blob/sdk/v0.6.0/sdk/logical/logical.go#L150-L154)
 interface directly.
 
+## Plugin logging
+
+Auth and secrets plugins based on `framework.Backend` from the SDK can take
+advantage of the SDK's [default logger](https://github.com/hashicorp/vault/blob/fe55cbbf05586ec4c0cd9bdf865ec6f741a8933c/sdk/framework/backend.go#L437).
+No additional setup is required. The logger can be used like the following:
+
+```go
+func (b *backend) example() {
+    b.Logger().Trace("Trace level log")
+    b.Logger().Debug("Debug level log")
+    b.Logger().Info("Info level log")
+    b.Logger().Warn("Warn level log")
+    b.Logger().Error("Error level log")
+}
+```
+
+See the source code of [vault-auth-plugin-example](https://github.com/hashicorp/vault-auth-plugin-example)
+for a more complete example of a plugin using logging.
+
 ## Building a plugin from source
 
 To build a plugin from source, first navigate to the location holding the