[README] clean obsolete stuff, fix #66

README.md

-dynamic-graph-python
-====================
+# dynamic-graph-python
 
 [![Building Status](https://travis-ci.org/stack-of-tasks/dynamic-graph-python.svg?branch=master)](https://travis-ci.org/stack-of-tasks/dynamic-graph-python)
 [![Pipeline status](https://gitlab.laas.fr/stack-of-tasks/dynamic-graph-python/badges/master/pipeline.svg)](https://gitlab.laas.fr/stack-of-tasks/dynamic-graph-python/commits/master)
@@ -14,52 +13,19 @@ submodules][git-submodules]. Please clone this repository using the
 repository, you can run `git submodule init && git submodule update`
 to retrieve the submodules.
 
+## Documentation
 
-Documentation
--------------
+[Online](https://gepettoweb.laas.fr/doc/stack-of-tasks/dynamic-graph-python/master/doxygen-html/)
 
-To get started with this library, please read the [online Doxygen
-documentation][doxygen-documentation].
 
-It can also be generated locally by running the `make doc`
-command. After the package is installed, the documentation will be
-located in the `$prefix/share/doc/dynamic-graph` directoy where
-`$prefix` is your installation prefix (`/usr/local` by default).
-
-
-Getting Help
-------------
+## Getting Help
 
 Support is provided through:
- * the HPP mailing-list: hpp@laas.fr
- * the following HipChat room: http://www.hipchat.com/gh4wQrZeV
-
-
-How can I install dynamic-graph?
---------------------------------
-
-### Installing dependencies
-
-The matrix abstract layer depends on several packages which
-have to be available on your machine.
-
- - Libraries:
-   - [Boost][] (>= 1.40)
-     Its detection is controled by the `BOOST_ROOT` variable, see next section
-     for more information.
-   - [Lapack][] library
-     Use the generic purpose `CMAKE_CXX_FLAGS` and `CMAKE_EXE_LINKER_FLAGS`
-     to insert the flags required for the compiler to find your Lapack library
-     if it is installed in a non-standard directory.
-   - [jrl-mal][] library
-   - [dynamic-graph][] library
- - System tools:
-   - [CMake][] (>=2.6)
-   - [pkg-config][]
-   - usual compilation tools (GCC/G++, make, etc.)
-     If you are using Ubuntu, these tools are gathered in the `build-essential` package.
+ * the [issue tracker](https://github.com/stack-of-tasks/dynamic-graph-python/issues)
+ * the matrix room [#stack-of-tasks:laas.fr](https://matrix.to/#/#stack-of-tasks:laas.fr)
 
 
+## How can I install dynamic-graph?
 
 ### Compiling and installing the package
 
@@ -68,24 +34,21 @@ The manual compilation requires two steps:
  1. configuration of the build and generation of the build files
  2. compilation of the sources and installation of the package
 
-dynamic-graph uses [CMake][] to generate build files. It is
+dynamic-graph uses CMake to generate build files. It is
 recommended to create a separate build directory:
 
 ```sh
-mkdir _build         # (1) Create a build directory
-cd _build            # (2) Go to the newly created build directory
-cmake [options] ..   # (3) Generate the build files
+mkdir build
+cd build
+cmake ..
 ```
 
-Options which can be passed to CMake are detailed in the next section.
-
 ```sh
-make                 # (4) Compile the package
-make test            # (5) Execute the package tests
-make install         # (6) Install the package into the prefix (see step 3)
+make
+make test
+make install
 ```
 
-
 ### Options
 
 Additional options can be set on the command line through the
@@ -109,13 +72,8 @@ Available options are:
 The test suite can be run from your build directory by running:
 
 ```sh
-   make test
+make test
 ```
 
 Please open a ticket if some tests are failing on your computer, it
 should not be the case.
-
-Credits
--------
-
-This package authors are credited in the [AUTHORS](AUTHORS) file.