Merge pull request #57 from psi4/loriab-patch-2

update install directions

Author: dgasmith

README.md

@@ -6,6 +6,11 @@
 <a href="https://codecov.io/gh/psi4/psi4numpy"> <img src="https://codecov.io/gh/psi4/psi4numpy/branch/master/graph/badge.svg" /></a>
 <a href="https://opensource.org/licenses/BSD-3-Clause"><img src="https://img.shields.io/badge/License-BSD%203--Clause-blue.svg" /></a>
 <br>
+<a href="#"> <img src="https://img.shields.io/github/release/psi4/psi4numpy.svg" /></a>
+<a href="#"> <img src="https://img.shields.io/github/commits-since/psi4/psi4numpy/latest.svg" /></a>
+<a href="#"> <img src="https://img.shields.io/github/release-date/psi4/psi4numpy.svg" /></a>
+<a href="#"> <img src="https://img.shields.io/github/commit-activity/y/psi4/psi4numpy.svg" /></a>
+<br>
 </p>
 
 ---
@@ -43,8 +48,9 @@ please see our [contributor guidelines](https://github.com/psi4/psi4numpy/blob/m
           # Have Psi4conda installer (http://psicode.org/downloads.html)
           >>> bash psi4conda-{various}.sh
           # Check `psi4` command in path; adjust path if needed
-          # **IF** using DFT tutorials,
-          >>> conda update psi4 -c psi4/label/dev
+          # **IF** using DFT tutorials (or a few newer specialized integrals), after above, create a separate environment within for newer psi4:
+          >>> conda create -n p4env psi4 -c psi4/label/dev
+          >>> source activate p4env
           ```
         * Option 2 (easy): Download Conda package according to [instructions](http://psicode.org/psi4manual/1.1/conda.html#how-to-install-a-psi4-binary-into-an-ana-miniconda-distribution)
           ```
@@ -53,20 +59,19 @@ please see our [contributor guidelines](https://github.com/psi4/psi4numpy/blob/m
           >>> bash
           >>> source activate p4env
           # Check `psi4` command in path; adjust path if needed
-          # **IF** using DFT tutorials,
-          >>> conda update psi4 -c psi4/label/dev
+          # **IF** using DFT tutorials (or a few newer specialized integrals), replace above line with this:
+          >>> conda create -n p4env psi4 -c psi4/label/dev
           ```
-        * Option 3 (medium): [Clone source](https://github.com/psi4/psi4) and [compile](https://github.com/psi4/psi4/blob/master/CMakeLists.txt#L16-L123) according to [instructions](http://psicode.org/psi4manual/master/build_faq.html#configuring-building-and-installing-psifour-via-source)
+        * Option 3 (medium): [Clone source](https://github.com/psi4/psi4) and [compile](https://github.com/psi4/psi4/blob/master/CMakeLists.txt#L16-L143) according to [instructions](http://psicode.org/psi4manual/master/build_faq.html#configuring-building-and-installing-psifour-via-source)
           ```
           # Get Psi4 source
           >>> git clone https://github.com/psi4/psi4.git
           >>> git checkout v1.1
           >>> cmake -H. -Bobjdir -Doption=value ...
           >>> cd objdir && make -j`getconf _NPROCESSORS_ONLN`
           # Find `psi4` command at objdir/stage/<TAB>/<TAB>/.../bin/psi4; adjust path if needed
-          # **IF** using DFT tutorials,
+          # **IF** using DFT tutorials (or a few newer specialized integrals), replace above line with this:
           >>> git checkout master
-          # `make` again
           ```
     3. [Python](https://python.org) 2.7+ (incl. w/ Psi4 Options 1 & 2)
     4. [NumPy](http://www.numpy.org) 1.7.2+ (incl. w/ Psi4 Options 1 & 2)
@@ -117,6 +122,11 @@ tutorials are organized in logical order of progression, which is enumerated in
 detail
 [here](https://github.com/psi4/psi4numpy/tree/master/Tutorials#interactive-tutorials).
 
-### Psi4 v1.1
+### Psi4 v1.1 (c. May 2017)
 This repostitory has recently been updated to be compatible with Psi4 version 1.1.
 Please see the `v1.0` branch for a Psi4 v1.0 compliant Psi4NumPy version. 
+
+### Psi4 v1.2 (c. May 2018)
+This reposititory is fully compatible with the upcoming Psi4 version 1.2.
+In fact (for a while), if you use v1.2, there's no need to worry if your Psi4 has
+all the features to run all the reference implementations and tutorials.