doc: move changelog to correct position

Signed-off-by: Etienne Marais <[email protected]>

Author: maiste

doc/changes/11865.md

@@ -0,0 +1,4 @@
+- (Experimental): Introduce the `library_parameter` stanza. It allows users to
+  declare a parameter when using the OxCaml compiler.
+  (#11963, implements #12084, @maiste) 
+

doc/changes/11963.md

@@ -1,5 +1,3 @@
-## Added
-
 - Allow `dune fmt` to properly run while a watch mode server is running.
   Note that the `--preview` flag is not supported in this mode.
   (#12064, @ElectreAAS)

doc/changes/12094.md

@@ -1,2 +1,2 @@
 - Use copy-on-write (COW) when copying files on filesystems that support it
-  (Btrfs, ZFS, XFS, etc), under Linux. (#12074, fixes #12071, @nojb)
+  (Btrfs, ZFS, XFS, etc), under Linux. (#12074, fixes #12071, @nojb)

doc/changes/12227.md

@@ -0,0 +1,2 @@
+- `dune exec` now accepts absolute paths inside the workspace.
+  (#12094, @Alizter)