Two fixes to HTTP semconv migration guide

docs/http/migration-guide.md

@@ -86,6 +86,8 @@ References:
 | `http.client_ip` → `client.address` | If `http.client_ip` was unknown (i.e., no [X-Forwarded-For][], [Forwarded#for][] headers), then `net.sock.peer.addr` → `client.address`; now must be provided to sampler |
 | `net.host.name` → `server.address` | Now based only on [Host][Host header], [:authority][HTTP/2 authority], [X-Forwarded-Host][], [Forwarded#host][] headers |
 | `net.host.port` → `server.port` | Now based only on [Host][Host header], [:authority][HTTP/2 authority], [X-Forwarded-Host][X-Forwarded-Host], [Forwarded#host][] headers |
+| `net.sock.host.addr` → `network.local.address` | (Still Opt-In) |
+| `net.sock.host.port` → `network.local.port`    | Conditionally required → Opt-In |
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 References: