add: git SCM (#272)

Logo from https://git-scm.com/

README.md

@@ -232,6 +232,7 @@ Say thanks!
 </tr>
 <tr>
 <td>Orcid<br><img src="https://edent.github.io/SuperTinyIcons/images/svg/orcid.svg" width="125" title="Orcid" /><br>615 Bytes</td>
+<td>Git<br><img src="images/svg/git.svg" width="125" title="git"/><br>482 Bytes</td>
 </tr>
 </table>
 

images/android-vector-drawable/git.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="512dp"
+    android:height="512dp"
+    android:viewportWidth="512"
+    android:viewportHeight="512">
+
+    <path
+        android:fillColor="#fff"
+        android:pathData="M 15 0 L 497 0 Q 512 0 512 15 L 512 497 Q 512 512 497 512 L 15 512 Q 0 512 0 497 L 0 15 Q 0 0 15 0 Z" />
+    <path
+        android:fillColor="#f05133"
+        android:pathData="M440.8 238.9L273 71.2a24.7 24.7 0 0 0-35 0l-34.8 34.9 44.2 44.1a29.4 29.4 0 0 1 37.2 37.5l42.5 42.5a29.4 29.4 0 1 1-17.6 16.6l-39.7-39.7v104.5a29.4 29.4 0 1 1-24.2-0.9V205.3a29.4 29.4 0 0 1-16-38.6l-43.5-43.5-115 115a24.7 24.7 0 0 0 0 34.9L239 440.8a24.7 24.7 0 0 0 35 0l166.9-167a24.7 24.7 0 0 0 0-34.9" />
+</vector>

images/reference/index.md

@@ -40,6 +40,7 @@ Where possible this links to the organisation's brand guidelines page.
 | <img src="/images/svg/mastodon.svg" width="256" />	| <img src="/images/reference/mastodon.svg" width="256" />	| https://github.com/tootsuite/joinmastodon/blob/master/public/press-kit.zip	|
 | <img src="/images/svg/wire.svg" width="256" />	| <img src="/images/reference/wire.svg" width="256" />	| https://brand.wire.com/symbol/|
 | <img src="/images/svg/tox.svg" width="256" />	| <img src="/images/reference/tox.svg" width="256" />	| https://github.com/Tox/tox.chat/blob/master/themes/website/static/img/icon.svg	|
+| <img src="/images/svg/git.svg" width="256"/>	| <img src="/images/reference/git.png" width="256"/>	| https://git-scm.com/downloads/logos	|
 | <img src="/images/svg/gitlab.svg" width="256" />	| <img src="/images/reference/gitlab.svg" width="256" />	| https://about.gitlab.com/press/	|
 | <img src="/images/svg/html5.svg" width="256" />	| <img src="/images/reference/html5.svg" width="256" />	| https://www.w3.org/html/logo/	|
 | <img src="/images/svg/meetup.svg" width="256" />	| <img src="/images/reference/meetup.png" width="256" />	| https://a248.e.akamai.net/secure.meetupstatic.com/photos/event/8/f/1/d/highres_454596637.jpeg	|