Two fixes to the HTTP semconv migration guide (#804)

Co-authored-by: Liudmila Molkova <limolkova@microsoft.com>

.chloggen/804.yaml

@@ -0,0 +1,22 @@
+# Use this changelog template to create an entry for release notes.
+#
+# If your change doesn't affect end users you should instead start
+# your pull request title with [chore] or use the "Skip Changelog" label.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: bug_fix
+
+# The name of the area of concern in the attributes-registry, (e.g. http, cloud, db)
+component: http
+
+# A brief description of the change. Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Two fixes to the HTTP semconv migration guide
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+# The values here must be integers.
+issues: [ 802 ]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:

docs/http/migration-guide.md

@@ -85,7 +85,9 @@ References:
 | `http.scheme` → `url.scheme` | Now factors in [X-Forwarded-Proto][], [Forwarded#proto][] headers |
 | `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.host.port` &rarr; `server.port` | &bullet; Now based only on [Host][Host header], [:authority][HTTP/2 authority], [X-Forwarded-Host][X-Forwarded-Host], [Forwarded#host][] headers<br>&bullet; Now captured even when same as default port for scheme |
+| `net.sock.host.addr` &rarr; `network.local.address` | |
+| `net.sock.host.port` &rarr; `network.local.port` | No longer defaults to `server.port` when `network.local.address` is set. |
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