From b93b5dffa1473dfaeb7a903fdd2777caa4f65d91 Mon Sep 17 00:00:00 2001
From: Aaron LI <aaronly.me@outlook.com>
Date: Wed, 8 Feb 2017 09:52:09 +0800
Subject: README.md: Update license and format.

---
 README.md | 59 +++++++++++++++++++++++++++++++++++------------------------
 1 file changed, 35 insertions(+), 24 deletions(-)

diff --git a/README.md b/README.md
index c74ebab..84124f6 100644
--- a/README.md
+++ b/README.md
@@ -49,28 +49,35 @@ TODO
 Installation
 ------------
 1. Clone this repository with ``opt_utilities``:
-```
-$ git clone --recursive https://github.com/liweitianux/chandra-acis-analysis.git
-```
-or in this way:
-```
-$ git clone https://github.com/liweitianux/chandra-acis-analysis.git
-$ cd chandra-acis-analysis
-$ git submodule update --init --recursive
-```
 
-2. Build ``mass_profile``
-```
-$ cd mass_profile
-$ make clean
-$ make
-(or use this to enable OpenMP)
-$ make OPENMP=yes
-```
+   ```
+   $ git clone --recursive https://github.com/liweitianux/chandra-acis-analysis.git
+   ```
 
-3. Get and build ``cosmo_calc``
-Get it from repository [atoolbox](https://github.com/liweitianux/atoolbox),
-under the directory ``astro/cosmo_calc``.
+   or in this way:
+
+   ```
+   $ git clone https://github.com/liweitianux/chandra-acis-analysis.git
+   $ cd chandra-acis-analysis
+   $ git submodule update --init --recursive
+   ```
+
+2. Build ``mass_profile`` tools:
+
+   ```
+   $ cd mass_profile
+   $ make clean
+   $ make
+   (or use this to enable OpenMP)
+   $ make OPENMP=yes
+   ```
+
+3. Get and build ``cosmo_calc``:
+
+   Get it from repository [atoolbox](https://github.com/liweitianux/atoolbox),
+   under the directory ``astro/cosmo_calc``.
+   Then place the built binary to where can be searched by shell
+   (e.g., ``~/bin``, and add ``~/bin`` to ``$PATH``).
 
 
 Settings
@@ -94,12 +101,12 @@ alias getlxfx="${MASS_PROFILE_DIR}/get_lxfx_data.sh"
 
 Usage
 -----
-See the doc ``HOWTO_chandra_acis_analysis.txt``
+See the doc [``HOWTO_chandra_acis_analysis.txt``](HOWTO_chandra_acis_analysis.txt)
 
 
 Useful Links
 ------------
-* [Chandra Chaser](http://cda.harvard.edu/chaser/)
+* [Chandra Data Archive](http://cda.harvard.edu/chaser/)
 * [NED search by name](http://ned.ipac.caltech.edu/forms/byname.html)
 * [SIMBAD](http://simbad.u-strasbg.fr/simbad/)
 * [HEASARC nH tool](https://heasarc.gsfc.nasa.gov/cgi-bin/Tools/w3nh/w3nh.pl)
@@ -107,5 +114,9 @@ Useful Links
 
 License
 -------
-* The tools are distributed under the **MIT license** unless otherwise declared.
-* The documents are distributed under the ??? License (TBD).
+Unless otherwise declared:
+
+* Codes developed by us are distributed under the
+  [MIT License](https://opensource.org/licenses/MIT);
+* Documentations and products generated by us are distributed under the
+  [Creative Commons Attribution 3.0 License](https://creativecommons.org/licenses/by/3.0/us/deed.en_US).
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