diff --git a/img/btn-ambass.png b/img/btn-ambass.png
index f154240656bcbc97d0c3493d5dc878ede3b029ba..b0667b5ddd48d8ec4551f597ee0e45f10934f8b7 100644
Binary files a/img/btn-ambass.png and b/img/btn-ambass.png differ
diff --git a/img/btn-community.png b/img/btn-community.png
index 690b56a48818a25a4ed75c1113f63a5e4a12ed4c..3c77b7cfffd4aa25970ea139e2107305ab3443bd 100644
Binary files a/img/btn-community.png and b/img/btn-community.png differ
diff --git a/img/btn-events.png b/img/btn-events.png
index 1908bd743094ed3b5fb681117bbb316a735841f3..d44cb0947ba733982ae4cd87bc20fc2a746d0dc1 100644
Binary files a/img/btn-events.png and b/img/btn-events.png differ
diff --git a/img/btn-git.png b/img/btn-git.png
new file mode 100644
index 0000000000000000000000000000000000000000..45cd5eb32f39f27b1ece8be4f69bfe71263c9210
Binary files /dev/null and b/img/btn-git.png differ
diff --git a/img/btn-tools.png b/img/btn-tools.png
index 712f4cec2841742eb6a116b59db49d4661deccf5..72f502d7c7104e7bb9f6d8cb42c4eea15547ede6 100644
Binary files a/img/btn-tools.png and b/img/btn-tools.png differ
diff --git a/img/buttons.pptx b/img/buttons.pptx
index 9866ac5c3cafe952a8fa87094364f92c11ba7975..22876ea961a0f1851f5d9b4ff540c909d6f16ce1 100644
Binary files a/img/buttons.pptx and b/img/buttons.pptx differ
diff --git a/img/~$buttons.pptx b/img/~$buttons.pptx
new file mode 100644
index 0000000000000000000000000000000000000000..823aa3e0a6b7fee2777e9a9fa5376722a2c3b63b
Binary files /dev/null and b/img/~$buttons.pptx differ
diff --git a/index.md b/index.md
index 0014deef7ff55d477435c3bec680e3115fad8d93..02b94bf44b4d9371876e9bc9a9d3ee45618957f9 100644
--- a/index.md
+++ b/index.md
@@ -24,7 +24,7 @@ The material shared here is written and maintained by an active community of WIN
 
 **Jump straight into one of the sections below, or use the sidebar to find out more about this repository.**
 
-[![tools](docs/img/btn-tools.png)](https://open.win.ox.ac.uk/pages/open-science/community/Open-WIN-Community/docs/tools/)  [![community](docs/img/btn-community.png)](https://open.win.ox.ac.uk/pages/open-science/community/Open-WIN-Community/docs/community/)  [![ambassadors](docs/img/btn-ambass.png)](https://open.win.ox.ac.uk/pages/open-science/community/Open-WIN-Community/docs/ambassadors/)  [![events](docs/img/btn-events.png)](https://open.win.ox.ac.uk/pages/open-science/community/Open-WIN-Community/docs/events/)
+[![tools](docs/img/btn-tools.png)](https://open.win.ox.ac.uk/pages/open-science/community/Open-WIN-Community/docs/tools/)  [![community](docs/img/btn-community.png)](https://open.win.ox.ac.uk/pages/open-science/community/Open-WIN-Community/docs/community/)  [![ambassadors](docs/img/btn-ambass.png)](https://open.win.ox.ac.uk/pages/open-science/community/Open-WIN-Community/docs/ambassadors/)  [![events](docs/img/btn-events.png)](https://open.win.ox.ac.uk/pages/open-science/community/Open-WIN-Community/docs/events/)  [![gitlab](docs/img/btn-git.png)](https://open.win.ox.ac.uk/pages/open-science/community/Open-WIN-Community/docs/gitlab/)