doc: fix duplicate labels

Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
diff --git a/doc/release-notes/v2.1-rc1.rst b/doc/release-notes/v2.1-rc1.rst
index 4ade51d..098ec95 100644
--- a/doc/release-notes/v2.1-rc1.rst
+++ b/doc/release-notes/v2.1-rc1.rst
@@ -175,12 +175,12 @@
 
 `Repository <https://github.com/open-power/hostboot>`__
 
-.. _patches-1:
+.. _v2.1-rc1-patches-1:
 
 Patches
 ~~~~~~~
 
-.. _commits-1:
+.. _v2.1-rc1-commits-1:
 
 Commits
 ~~~~~~~
@@ -837,12 +837,12 @@
 
 `Repository <https://github.com/open-power/occ>`__
 
-.. _patches-2:
+.. _v2.1-rc1-patches-2:
 
 Patches
 ~~~~~~~
 
-.. _commits-2:
+.. _v2.1-rc1-commits-2:
 
 Commits
 ~~~~~~~
@@ -869,14 +869,14 @@
 
 `Repository <https://github.com/open-power/petitboot>`__
 
-.. _patches-3:
+.. _v2.1-rc1-patches-3:
 
 Patches
 ~~~~~~~
 
 -  `petitboot-01-autotools-Add-autopoint-generated-files.patch <https://github.com/open-power/op-build/tree/HEAD/openpower/package/petitboot/petitboot-01-autotools-Add-autopoint-generated-files.patch>`__
 
-.. _commits-3:
+.. _v2.1-rc1-commits-3:
 
 Commits
 ~~~~~~~
@@ -886,12 +886,12 @@
 
 `Repository <https://github.com/open-power/sbe>`__
 
-.. _patches-4:
+.. _v2.1-rc1-patches-4:
 
 Patches
 ~~~~~~~
 
-.. _commits-4:
+.. _v2.1-rc1-commits-4:
 
 Commits
 ~~~~~~~
@@ -951,12 +951,12 @@
 
 `Repository <https://github.com/open-power/skiboot>`__
 
-.. _patches-5:
+.. _v2.1-rc1-patches-5:
 
 Patches
 ~~~~~~~
 
-.. _commits-5:
+.. _v2.1-rc1-commits-5:
 
 Commits
 ~~~~~~~
@@ -1119,12 +1119,12 @@
 
 `Repository <https://github.com/open-power/zaius-xml>`__
 
-.. _patches-6:
+.. _v2.1-rc1-patches-6:
 
 Patches
 ~~~~~~~
 
-.. _commits-6:
+.. _v2.1-rc1-commits-6:
 
 Commits
 ~~~~~~~