Update config.go

Rename DefaultBGPMED and change description of interface

pkg/config/config.go

@@ -112,7 +112,7 @@ type Peer struct {
 	LocalPref6             *int      `yaml:"local-pref6" description:"IPv6 BGP local preference (overrides local-pref, not included in optimizer)" default:"-"`
 	SetLocalPref           *bool     `yaml:"set-local-pref" description:"Should an explicit local pref be set?" default:"true"`
 	Multihop               *bool     `yaml:"multihop" description:"Should BGP multihop be enabled? (255 max hops)" default:"false"`
-	Interface              *string   `yaml:"interface" description:"Interface of BGP listen address" default:"-"`
+	Interface              *string   `yaml:"interface" description:"Interface for link-local BGP IPv6 sessions" default:"-"`
 	Listen4                *string   `yaml:"listen4" description:"IPv4 BGP listen address" default:"-"`
 	Listen6                *string   `yaml:"listen6" description:"IPv6 BGP listen address" default:"-"`
 	LocalASN               *int      `yaml:"local-asn" description:"Local ASN as defined in the global ASN field" default:"-"`
@@ -139,7 +139,7 @@ type Peer struct {
 	TTLSecurity            *bool     `yaml:"ttl-security" description:"RFC 5082 Generalized TTL Security Mechanism" default:"false"`
 	InterpretCommunities   *bool     `yaml:"interpret-communities" description:"Should well-known BGP communities be interpreted by their intended action?" default:"true"`
 	DefaultLocalPref       *int      `yaml:"default-local-pref" description:"Default value for local preference" default:"-"`
-	DefaultBgpMed          *int      `yaml:"bgp-med" description:"Value of the Multiple Exit Discriminator to be used during route selection when the MED attribute is missing." default:"0"`
+	DefaultBGPMED          *int      `yaml:"bgp-med" description:"Value of the Multiple Exit Discriminator to be used during route selection when the MED attribute is missing." default:"0"`
 	AdvertiseHostname      *bool     `yaml:"advertise-hostname" description:"Advertise hostname capability" default:"false"`
 	DisableAfterError      *bool     `yaml:"disable-after-error" description:"Disable peer after error" default:"false"`
 	PreferOlderRoutes      *bool     `yaml:"prefer-older-routes" description:"Prefer older routes instead of comparing router IDs (RFC 5004)" default:"false"`