Update readme.go (#795)

* Update readme.go

Readme has change the way they issue their keys

now its like rdme_{70} ascii chars

* Update readme.go

* Update readme.go

* Update readme.go

The tester seems to be working fine with the new defaultclient code

pkg/detectors/readme/readme.go

@@ -6,7 +6,7 @@ import (
 	"regexp"
 	"strings"
 
-	"github.com/trufflesecurity/trufflehog/v3/pkg/common"
+
 	"github.com/trufflesecurity/trufflehog/v3/pkg/detectors"
 	"github.com/trufflesecurity/trufflehog/v3/pkg/pb/detectorspb"
 )
@@ -17,16 +17,15 @@ type Scanner struct{}
 var _ detectors.Detector = (*Scanner)(nil)
 
 var (
-	client = common.SaneHttpClient()
 
 	// Make sure that your group is surrounded in boundary characters such as below to reduce false positives.
-	keyPat = regexp.MustCompile(detectors.PrefixRegex([]string{"readme"}) + `\b([a-zA-Z0-9_]{32})\b`)
+	keyPat = regexp.MustCompile(`(rdme_[a-z0-9]{70})`)
 )
 
 // Keywords are used for efficiently pre-filtering chunks.
 // Use identifiers in the secret preferably, or the provider name.
 func (s Scanner) Keywords() []string {
-	return []string{"readme"}
+	return []string{"rdme_"}
 }
 
 // FromData will find and optionally verify ReadMe secrets in a given set of bytes.
@@ -47,12 +46,13 @@ func (s Scanner) FromData(ctx context.Context, verify bool, data []byte) (result
 		}
 
 		if verify {
-			req, err := http.NewRequestWithContext(ctx, "GET", "https://dash.readme.com/api/v1", nil)
+			req, err := http.NewRequestWithContext(ctx, http.MethodGet, "https://dash.readme.com/api/v1", nil)
 			if err != nil {
 				continue
 			}
 			req.SetBasicAuth(resMatch, "")
-			res, err := client.Do(req)
+			req.Header.Add("accept", "application/json")
+			res, err := http.DefaultClient.Do(req)
 			if err == nil {
 				defer res.Body.Close()
 				if res.StatusCode >= 200 && res.StatusCode < 300 {