Apply suggestions from code review

Co-authored-by: Ben Tranter <[email protected]>

README.md

@@ -157,11 +157,11 @@ func ListRepositoriesV2(ctx context.Context, client *godo.Client, registryName s
 
 ### Automatic Retries and Exponential Backoff
 
-The Godo client can be configured to use automatic retries and exponentional backoff for requests that fail with 429 or 500-level response codes via the [go-retryablehttp](https://github.com/hashicorp/go-retryablehttp) package. To configure the Godo client to enable usage of the go-retryablehttp, the `RetryConfig.RetryMax` must be set to enable this behavior:
+The Godo client can be configured to use automatic retries and exponentional backoff for requests that fail with 429 or 500-level response codes via [go-retryablehttp](https://github.com/hashicorp/go-retryablehttp). To configure Godo to enable usage of go-retryablehttp, the `RetryConfig.RetryMax` must be set.
 
-```
+```go
 tokenSrc := oauth2.StaticTokenSource(&oauth2.Token{
-    AccessToken: "new_token",
+    AccessToken: "dop_v1_xxxxxx",
 })
 
 oauth_client := oauth2.NewClient(oauth2.NoContext, tokenSrc)