[ImgBot] Optimize images (#1)

*Total -- 947.94kb -> 894.48kb (5.64%)

/s/SVG.svg -- 0.39kb -> 0.30kb (22.56%)
/p/Piet.png -- 0.75kb -> 0.60kb (20.03%)
/t/images/milkyway.jpg -- 946.81kb -> 893.59kb (5.62%)

Signed-off-by: ImgBotApp <ImgBotHelp@gmail.com>

Co-authored-by: ImgBotApp <ImgBotHelp@gmail.com>

s/SVG.svg

@@ -1,9 +1 @@
-<?xml version="1.0" encoding="utf-8" standalone="no"?>
-<svg width="240" height="100" viewBox="0 0 240 100" zoomAndPan="disable"
-     xmlns="http://www.w3.org/2000/svg"  xmlns:xlink="http://www.w3.org/1999/xlink">
-  <title>Hello World</title>
-    <g>
-      <text x="10" y="50">Hello World</text>
-      <animate attributeName='opacity' values='0;1' dur='4s' fill='freeze' begin="0s"/>
-    </g>
-</svg>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="240" height="100" viewBox="0 0 240 100" zoomAndPan="disable"><title>Hello World</title><g><text x="10" y="50">Hello World</text><animate fill="freeze" attributeName="opacity" begin="0s" dur="4s" values="0;1"/></g></svg>