Merge tag 'tags/gudhi-release-3.2.0' into dfsg/latest

1 files changed, 12 insertions, 3 deletions

diff --git a/README.md b/README.md
index 167a38b3..279953e1 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 
-[![Build Status](https://travis-ci.org/GUDHI/gudhi-devel.svg?branch=master)](https://travis-ci.org/GUDHI/gudhi-devel)
-[![CircleCI](https://circleci.com/gh/GUDHI/gudhi-devel/tree/master.svg?style=svg)](https://circleci.com/gh/GUDHI/gudhi-devel/tree/master)
-[![Build status](https://ci.appveyor.com/api/projects/status/976j2uut8xgalvx2/branch/master?svg=true)](https://ci.appveyor.com/project/GUDHI/gudhi-devel/branch/master)
+[![OSx on Azure](https://dev.azure.com/GUDHI/gudhi-devel/_apis/build/status/GUDHI.gudhi-devel?branchName=master)](https://dev.azure.com/GUDHI/gudhi-devel/_build/latest?definitionId=1&branchName=master)
+[![Linux on CircleCI](https://circleci.com/gh/GUDHI/gudhi-devel/tree/master.svg?style=svg)](https://circleci.com/gh/GUDHI/gudhi-devel/tree/master)
+[![Win on Appveyor](https://ci.appveyor.com/api/projects/status/976j2uut8xgalvx2/branch/master?svg=true)](https://ci.appveyor.com/project/GUDHI/gudhi-devel/branch/master)
 [![Anaconda Cloud](https://anaconda.org/conda-forge/gudhi/badges/version.svg)](https://anaconda.org/conda-forge/gudhi)
 [![Anaconda downloads](https://anaconda.org/conda-forge/gudhi/badges/downloads.svg)](https://anaconda.org/conda-forge/gudhi)
 
@@ -10,6 +10,15 @@
 
 The GUDHI library is a generic open source C++ library, with a Python interface, for Topological Data Analysis (TDA) and Higher Dimensional Geometry Understanding. The library offers state-of-the-art data structures and algorithms to construct simplicial complexes and compute persistent homology.
 
+# Source code
+
+We recommend that users get official releases from [the GUDHI website](https://gudhi.inria.fr/).
+
+For potential contributors, to fully checkout GUDHI, after cloning the git repository, you may also need to checkout its submodules using
+```sh
+git submodule update --init
+```
+
 # Compilation and installation
 
 To install GUDHI, you can follow the [C++ compilation procedure](https://gudhi.inria.fr/doc/latest/installation.html), the [Python compilation procedure](https://gudhi.inria.fr/python/latest/installation.html), use our [conda-forge package](https://gudhi.inria.fr/conda/), or [go with Docker](https://gudhi.inria.fr/dockerfile/).