[MRG] Add logo to POT (#357)

* add logo code and logo to doc

* update release file

6 files changed, 395 insertions, 1 deletions

diff --git a/docs/source/_static/images/logo.png b/docs/source/_static/images/logo.png
new file mode 100644
index 0000000..7be5df7
--- /dev/null
+++ b/docs/source/_static/images/logo.png
diff --git a/docs/source/_static/images/logo.svg b/docs/source/_static/images/logo.svg
new file mode 100644
index 0000000..0bf2cb7
--- /dev/null
+++ b/docs/source/_static/images/logo.svg
@@ -0,0 +1,200 @@
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diff --git a/docs/source/_static/images/logo_dark.png b/docs/source/_static/images/logo_dark.png
new file mode 100644
index 0000000..f484188
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diff --git a/docs/source/_static/images/logo_dark.svg b/docs/source/_static/images/logo_dark.svg
new file mode 100644
index 0000000..56ce2d9
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diff --git a/docs/source/conf.py b/docs/source/conf.py
index d1b8426..60d0bb7 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -162,6 +162,7 @@ html_theme = 'sphinx_rtd_theme'
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
 # documentation.
+
 html_theme_options = {}
 
 # Add any paths that contain custom themes here, relative to this directory.
@@ -176,7 +177,7 @@ html_theme_options = {}
 
 # The name of an image file (relative to this directory) to place at the top
 # of the sidebar.
-#html_logo = None
+html_logo = '_static/images/logo_dark.svg'
 
 # The name of an image file (relative to this directory) to use as a favicon of
 # the docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
@@ -188,6 +189,7 @@ html_theme_options = {}
 # so a file named "default.css" will overwrite the builtin "default.css".
 html_static_path = ['_static']
 
+
 # Add any extra paths that contain custom files (such as robots.txt or
 # .htaccess) here, relative to this directory. These files are copied
 # directly to the root of the documentation.
diff --git a/docs/source/index.rst b/docs/source/index.rst
index 8de31ae..7ff7d22 100644
--- a/docs/source/index.rst
+++ b/docs/source/index.rst
@@ -6,6 +6,10 @@
 POT: Python Optimal Transport
 =============================
 
+.. image:: _static/images/logo.svg
+  :width: 400
+  :alt: POT Logo
+
 Contents
 --------
 
@@ -20,6 +24,7 @@ Contents
    .github/CONTRIBUTING
    .github/CODE_OF_CONDUCT
 
+
 .. include:: ../../README.md
    :parser: myst_parser.sphinx_