Add March 2026 changelog

apps/docs/changelog/march-2026.mdx

@@ -0,0 +1,14 @@
+---
+title: March 2026
+description: What's new in Sweetr this month.
+---
+
+<Update label="2026-03-16" description="Week of March 16" tags={["Feature", "Update"]}>
+  ## People profiles now show bio and location
+
+  Sweetr now syncs **bio** and **location** from GitHub profiles to your [People](/platform/people) directory. You can see this information on each person's overview page — no setup required.
+
+  ## API rate limiting
+
+  The [REST API](/api-reference/introduction) now enforces a rate limit of **100 requests per minute** per API key. Requests over the limit receive a `429 Too Many Requests` response. See [Rate Limits](/api-reference/rate-limit) for details.
+</Update>

apps/docs/docs.json

@@ -122,6 +122,15 @@
           }
         ]
       },
+      {
+        "tab": "Changelog",
+        "pages": [
+          {
+            "group": "Changelog",
+            "pages": ["changelog/march-2026"]
+          }
+        ]
+      },
       {
         "tab": "API Reference",
         "pages": [