Sample config: enable SAM by default + update description for notransit

contrib/i2pd.conf

@@ -69,7 +69,8 @@ ipv6 = false
 ## Default is X for floodfill, L for regular node
 # bandwidth = L
 
-## Router will not accept transit tunnels at startup
+## Router will not accept transit tunnels, disabling transit traffic completely
+## (default = false)
 # notransit = true
 
 ## Router will be floodfill
@@ -141,7 +142,7 @@ port = 4447
 
 [sam]
 ## Uncomment and set to 'true' to enable SAM Bridge
-# enabled = false
+enabled = true
 ## Address and port service will listen on
 # address = 127.0.0.1
 # port = 7656