Update package path in instructions.

README.md

@@ -3,5 +3,5 @@
 ## Installation
 Use the JupyterLab extension manager, or:
 ```bash
-jupyter labextension install @pjj56/finesse-syntax-jupyterlab
+jupyter labextension install finesse-syntax-jupyterlab
 ```

package.json

 {
-  "name": "@pjj56/finesse-syntax-jupyterlab",
+  "name": "finesse-syntax-jupyterlab",
   "version": "0.1.7",
   "description": "Syntax highlighting for kat script within JupyterLab.",
   "keywords": [