Update content

README.md

@@ -2,18 +2,11 @@
 
 ![Stability Experimental][badge-stability]
 
-To experiment with the extension in a live notebook,
+To experiment with the extension in a live notebook environment,
 
 -   stable version: [![Binder (stable)][badge-binder]][binder-stable]
 -   latest master: [![Binder (latest)][badge-binder]][binder-master]
 
-To install,
-
-```bash
-pip install jupyterlab-commenting-service
-jupyter labextension install @jupyterlab/commenting-extension
-```
-
 This JupyterLab extension
 
 -   allows commenting on JupyterLab notebook cells and within text documents.
@@ -24,6 +17,13 @@ This JupyterLab extension
 
 ![Annotating notebook cells](https://raw.githubusercontent.com/jupyterlab/jupyterlab-commenting/master/docs/img/usage-11.gif)
 
+## Installation
+
+```bash
+pip install jupyterlab-commenting-service
+jupyter labextension install @jupyterlab/commenting-extension
+```
+
 ## Usage
 
 See the [Usage Guide](./docs/usage.md) to learn more about what features this extension offers.