Add version 0.26.0 to docs

While there, fix comment on files to be kept in sync.

Change-Id: I48ac0c42229f260fe207b89227d133f3ffe424db
PiperOrigin-RevId: 250253047
diff --git a/scripts/docs/doc_versions.bzl b/scripts/docs/doc_versions.bzl
index e77e819..39328e3 100644
--- a/scripts/docs/doc_versions.bzl
+++ b/scripts/docs/doc_versions.bzl
@@ -23,6 +23,10 @@
 
 DOC_VERSIONS = [
     {
+        "version": "0.26.0",
+        "sha256": "3907dfc6fb27d246e67877e553e8951fac239bb49f2dec7e06b6b09cb0b98b8d",
+    },
+    {
         "version": "0.25.0",
         "sha256": "e8ab61c047225e808982a564ecd692fd63bd243dccc88a8768ed069a5362a685",
     },