Change install instruction to use PyPI

.gitignore

@@ -23,3 +23,4 @@ benchmark_xyz
 /tmp
 *_cache
 datacache
+dist

README.md

@@ -8,29 +8,24 @@ TorchANI is a pytorch implementation of ANI. It is currently under alpha release
 
 # Install
 
-TorchANI requires the master branch of PyTorch, which means:
+TorchANI requires the latest preview version of PyTorch. You can install PyTorch by
 
-You need to install the latest preview version of pytorch\
-For install
 ```bash
 conda install pytorch-nightly -c pytorch
 ```
-For update
+If you updated TorchANI, you may also need to update PyTorch:
+
 ```bash
 conda update pytorch-nightly
 ```
 
-After installing the correct PyTorch, all you need is clone the repository and do:
+After installing the correct PyTorch, you can install TorchANI by:
 
 ```bash
-pip install .
+pip install torchani
 ```
 
-After TorchANI has been installed, you can build the documents by running `sphinx-build docs build`. But make sure you
-install dependencies:
-```bash
-pip install sphinx sphinx-gallery pillow matplotlib sphinx_rtd_theme
-```
+See also [PyTorch's official site](https://pytorch.org/get-started/locally/) for instructions of installing latest preview version of PyTorch.
 
 # Paper
 
@@ -40,6 +35,24 @@ The original ANI-1 paper is:
 
 We are planning a seperate paper for TorchANI, it will be available when we are ready for beta release of TorchANI.
 
+See also: [isayev/ASE_ANI](https://github.com/isayev/ASE_ANI)
+
+# Develop
+
+To install TorchANI from GitHub:
+
+```bash
+git clone https://github.com/aiqm/torchani.git
+cd torchani
+pip install -e .
+```
+
+After TorchANI has been installed, you can build the documents by running `sphinx-build docs build`. But make sure you
+install dependencies:
+```bash
+pip install sphinx sphinx-gallery pillow matplotlib sphinx_rtd_theme
+```
+
 # Note to TorchANI developers
 
 Never commit to the master branch directly. If you need to change something, create a new branch, submit a PR on GitHub.

docs/start.rst

 Installation
 ============
 
-The installation of TorchANI is very simple. You just need to clone the git
-repository and do ``pip install .`` like when you install other software.
-But keep in mind that TorchANI requires master branch of PyTorch. If you do
-not have master branch PyTorch installed, you should install it before
-installing TorchANI. Refer to PyTorch's `official instruction`_ to compile
-install PyTorch.
+TorchANI requires the latest preview version of PyTorch. If you are using anaconda, you can install PyTorch by ``conda install pytorch-nightly -c pytorch``. You can also refer to `the official site of PyTorch`_ for instructions of installing latest preview version of PyTorch.
 
-.. _official instruction:
-    https://github.com/pytorch/pytorch#from-source
+After installing PyTorch, you can then install TorchANI by ``pip install torchani``.
+
+.. _the official site of PyTorch:
+    https://pytorch.org/get-started/locally/