Add Strava icon (#154)

images/android-vector-drawable/strava.xml

@@ -0,0 +1,17 @@
+<?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="#fc4c01"
+        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="#fff"
+        android:pathData="M120 288L232 56l112 232h-72l-40-96-40 96z" />
+    <path
+        android:fillColor="#fda580"
+        android:pathData="M280 288l32 72 32-72h48l-80 168-80-168z" />
+</vector>

images/reference/index.md

@@ -103,3 +103,4 @@ Where possible this links to the organisation's brand guidelines page.
 | <img src="/images/svg/stackexchange.svg" width="256" />	| <img src="/images/reference/stackexchange.svg" width="256" />	| https://stackoverflow.com/company/logos |
 | <img src="/images/svg/qq.svg" width="256" />	| <img src="/images/reference/qq.png" width="256" />	| http://www.imqq.com/English1033.html |
 | <img src="/images/svg/gogcom.svg" width="256" />	| <img src="/images/reference/gogcom.png" width="256" />	| https://www.cdprojekt.com/en/media/logotypes/ |
+| <img src="/images/svg/strava.svg" width="256" />	| <img src="/images/reference/strava.png" width="256" />	| https://www.strava.com/settings/badges |

images/svg/strava.svg

@@ -0,0 +1,10 @@
+<svg
+xmlns="http://www.w3.org/2000/svg"
+aria-label="Strava" role="img"
+viewBox="0 0 512 512">
+<rect
+width="512" height="512"
+rx="15%"
+fill="#fc4c01"/>
+<path fill="#fff" d="M120 288L232 56l112 232h-72l-40-96-40 96z"/><path fill="#fda580" d="M280 288l32 72 32-72h48l-80 168-80-168z"/>
+</svg>