docs: Update README.md prerequisites list

Murrent Mario · Murrent Mario · commit fada88403d55 · 2021-10-08T10:47:08.000+02:00
Change to list format for prerequisites
diff --git a/README.md b/README.md
@@ -14,7 +14,7 @@ The metrics exposed allows to calculate common RED (Request, Error rate, Duratio
 
 The following peer dependencies are required:
 
-prom-client
+- prom-client
 
 ## Install
 
