Update README

README.md

@@ -74,3 +74,41 @@ You can then start `arista-proxy` with default flags and talk to it via gRPC:
     alias grpc-dev="grpc -cacert $(pwd)/pki/ca.pem -key $(pwd)/pki/client-key.pem -cert $(pwd)/pki/client.pem"
     grpc-dev test.arista-proxy.svc.cluster.local:42000 proto.AristaProxy.ShowVersion
 
+Debug Status Page
+-----------------
+
+The `debug_address` flag controls spawning an HTTP server useful for debugging. You can use it to inspect gRPC request and view general status information of the proxy.
+
+Flags
+-----
+
+    ./arista-proxy -help
+    Usage of ./arista-proxy:
+      -alsologtostderr
+        	log to standard error as well as files
+      -arista_api string
+        	Arista remote endpoint (default "http://admin:password@1.2.3.4:80/command-api")
+      -debug_address string
+        	Debug HTTP listen address, or empty to disable (default "127.0.0.1:30000")
+      -listen_address string
+        	gRPC listen address (default "127.0.0.1:30001")
+      -log_backtrace_at value
+        	when logging hits line file:N, emit a stack trace
+      -log_dir string
+        	If non-empty, write log files in this directory
+      -logtostderr
+        	log to standard error instead of files
+      -pki_realm string
+        	PKI realm (default "svc.cluster.local")
+      -stderrthreshold value
+        	logs at or above this threshold go to stderr
+      -tls_ca_path string
+        	Path to PKI CA certificate (default "pki/ca.pem")
+      -tls_certificate_path string
+        	Path to PKI service certificate (default "pki/service.pem")
+      -tls_key_path string
+        	Path to PKI service private key (default "pki/service-key.pem")
+      -v value
+        	log level for V logs
+      -vmodule value
+        	comma-separated list of pattern=N settings for file-filtered logging