Fixed variable to enable IPv6 (#2044)

Signed-off-by: Travis Beckham <[email protected]>

Author: travisbeckham

linkerd.io/content/2-edge/features/ipv6.md

@@ -6,7 +6,7 @@ description: Linkerd is compatible with both IPv6-only and dual-stack clusters.
 As of version 2.16 (and edge-24.8.2) Linkerd fully supports Kubernetes clusters
 configured for IPv6-only or dual-stack networking.
 
-This is disabled by default; to enable just set `proxy.disableIPv6=false` when
+This is disabled by default; to enable just set `disableIPv6=false` when
 installing the control plane and, if you use it, the linkerd-cni plugin.
 
 Enabling IPv6 support does not generally change how Linkerd operates, except in

linkerd.io/content/2.16/features/ipv6.md

@@ -6,7 +6,7 @@ description: Linkerd is compatible with both IPv6-only and dual-stack clusters.
 As of version 2.16 (and edge-24.8.2) Linkerd fully supports Kubernetes clusters
 configured for IPv6-only or dual-stack networking.
 
-This is disabled by default; to enable just set `proxy.disableIPv6=false` when
+This is disabled by default; to enable just set `disableIPv6=false` when
 installing the control plane and, if you use it, the linkerd-cni plugin.
 
 Enabling IPv6 support does not generally change how Linkerd operates, except in

linkerd.io/content/2.17/features/ipv6.md

@@ -6,7 +6,7 @@ description: Linkerd is compatible with both IPv6-only and dual-stack clusters.
 As of version 2.16 (and edge-24.8.2) Linkerd fully supports Kubernetes clusters
 configured for IPv6-only or dual-stack networking.
 
-This is disabled by default; to enable just set `proxy.disableIPv6=false` when
+This is disabled by default; to enable just set `disableIPv6=false` when
 installing the control plane and, if you use it, the linkerd-cni plugin.
 
 Enabling IPv6 support does not generally change how Linkerd operates, except in

linkerd.io/content/2.18/features/ipv6.md

@@ -6,7 +6,7 @@ description: Linkerd is compatible with both IPv6-only and dual-stack clusters.
 As of version 2.16 (and edge-24.8.2) Linkerd fully supports Kubernetes clusters
 configured for IPv6-only or dual-stack networking.
 
-This is disabled by default; to enable just set `proxy.disableIPv6=false` when
+This is disabled by default; to enable just set `disableIPv6=false` when
 installing the control plane and, if you use it, the linkerd-cni plugin.
 
 Enabling IPv6 support does not generally change how Linkerd operates, except in