Fix CHANGELOG formatting (#716)

Author: martinRenou

CHANGELOG.md

@@ -1,43 +1,5 @@
 # JupyterCAD Changelog
 
-## 1.0.0 - Highlights
-
-Below are the major highlights in `JupyterCAD` 1.0.0
-
-### New packaging system
-
-From 1.0.0, `JupyterCAD` is split into multiple python and javascript packages, this makes deploying and extending `JupyterCAD` easier.
-
-- New python packages:
-  - `jupytercad-core`: package contains core plugins for worker registry, jcad file support, document tracker, and annotation
-  - `jupytercad-lab`: package contains plugins for lab interface and notebook support
-  - `jupytercad-app`: the standalone `JupyterCAD` application
-- New js packages:
-  - `@jupytercad/schema`: package contains the schema of the JCAD file and related models/interfaces
-  - `@jupytercad/opencascade`: the custom opencascade.js build for `JupyterCAD`
-  - `@jupytercad/occ-worker`: the opencascade worker of `JupyterCAD`.
-  - `@jupytercad/base`: package contains the UI components.
-
-The current `jupytercad` PYPI package is still available, but it has become a meta-package to facilitate the installation of the application. Users can continue to install `JupyterCAD` with
-
-```bash
-pip install jupytercad
-```
-
-### New extension system
-
-`JupyterCAD` now provides multiple tokens to allow extending its features by using the `JupyterLab` extension system. Users can register new file formats, register new operators, or add more post-processing capabilities to the application.
-
-By using the new system, `FreeCAD` file format is supported through [an extension of `JupyterCAD`](https://github.com/jupytercad/jupytercad-freecad), users can install it with
-
-```bash
-pip install jupytercad-freecad
-```
-
-### New supported file format
-
-`JupyterCAD` now can render the geometries of a STEP file. More improvement in the interoperability of the STEP file will be added in future versions.
-
 <!-- <START NEW CHANGELOG ENTRY> -->
 
 ## 3.1.2
@@ -998,6 +960,44 @@ No merged PRs
 
 ## 1.0.0
 
+### Highlights
+
+Below are the major highlights in `JupyterCAD` 1.0.0
+
+### New packaging system
+
+From 1.0.0, `JupyterCAD` is split into multiple python and javascript packages, this makes deploying and extending `JupyterCAD` easier.
+
+- New python packages:
+  - `jupytercad-core`: package contains core plugins for worker registry, jcad file support, document tracker, and annotation
+  - `jupytercad-lab`: package contains plugins for lab interface and notebook support
+  - `jupytercad-app`: the standalone `JupyterCAD` application
+- New js packages:
+  - `@jupytercad/schema`: package contains the schema of the JCAD file and related models/interfaces
+  - `@jupytercad/opencascade`: the custom opencascade.js build for `JupyterCAD`
+  - `@jupytercad/occ-worker`: the opencascade worker of `JupyterCAD`.
+  - `@jupytercad/base`: package contains the UI components.
+
+The current `jupytercad` PYPI package is still available, but it has become a meta-package to facilitate the installation of the application. Users can continue to install `JupyterCAD` with
+
+```bash
+pip install jupytercad
+```
+
+### New extension system
+
+`JupyterCAD` now provides multiple tokens to allow extending its features by using the `JupyterLab` extension system. Users can register new file formats, register new operators, or add more post-processing capabilities to the application.
+
+By using the new system, `FreeCAD` file format is supported through [an extension of `JupyterCAD`](https://github.com/jupytercad/jupytercad-freecad), users can install it with
+
+```bash
+pip install jupytercad-freecad
+```
+
+### New supported file format
+
+`JupyterCAD` now can render the geometries of a STEP file. More improvement in the interoperability of the STEP file will be added in future versions.
+
 ([Full Changelog](https://github.com/jupytercad/jupytercad/compare/v1.0.0a4...13901c2592ff41f73c981f566305cbf5ad89332c))
 
 ### Enhancements made