update content

Author: Jue-Xu

.DS_Store

@@ -1,18 +1,25 @@
 # Quantum Simulatoin Cookbook
 
+## About
+The cookbook for quantum simulation
+
 ## Usage 
 ### theorem, definition environments
 `pip install sphinx-proof`
 https://sphinx-proof.readthedocs.io/en/latest/syntax.html
 
 ### Building the book
 
-If you'd like to develop and/or build the QIC Cookbook book, you should:
+If you'd like to develop and/or build the jupyter book, you should:
 
 1. Clone this repository
 2. Run `pip install -r requirements.txt` (it is recommended you do this within a virtual environment)
 3. (Optional) Edit the books source files located in the `./` directory
 4. Run `jupyter-book clean .` to remove any existing builds
 5. Run `jupyter-book build .`
 
-A fully-rendered HTML version of the book will be built in `./_build/html/`.
+A fully-rendered HTML version of the book will be built in `./_build/html/`.
+
+### deploy on GitHub pages
+`ghp-import -n -p -f _build/html`
+more details read ...