misc: fix feature description spelling

Type: docs
Signed-off-by: Ole Troan <ot@cisco.com>
Change-Id: I46856db81d42c3f10c03a7bf9a245cc998cd8a01

src/vnet/adj/FEATURE.yaml

@@ -18,7 +18,6 @@ features:
     (i.e. how to send the the GRE tunnel's destination address).
   - Glean adjacencies describe how to broadcast packets onto a subnet
 
-
-description: "Adjacency"
+description: "Adjacencies represent the next-hop information required to reach a directly connected neighbour."
 state: production
 properties: [API, CLI, MULTITHREAD]

src/vnet/arp/FEATURE.yaml

@@ -4,6 +4,6 @@ maintainer: Neale Ranns <nranns@cisco.com>
 features:
   - ARP responder
 
-description: "ARP"
+description: "An implementation of the Address resolution protocol (ARP) as described in RFC826"
 state: production
 properties: [API, CLI, MULTITHREAD]

src/vnet/ip6-nd/FEATURE.yaml

@@ -1,12 +1,12 @@
 ---
-name: IPv6 Neeighbour Discovery
+name: IPv6 Neighbor Discovery
 maintainer: Neale Ranns <nranns@cisco.com>
 features:
-  - Nieghbour discovery.
+  - Neighbor discovery.
   - ND Auto address configuration
   - Multicast Listener Discovery - only as host role to send adverts
   - Router Advertisements
 
-description: "IPv6-ND"
+description: "An implementation of the IPv6 Neighbor discovery protocol as described in RFC4861 and RFC4862."
 state: production
 properties: [API, CLI, MULTITHREAD]