docs: refresh project identity and README

docs/images/ferese-lockup.svg

@@ -0,0 +1,24 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 300 80" role="img" aria-labelledby="title desc">
+  <title id="title">Ferese</title>
+  <desc id="desc">The blue Ferese symbol beside the Ferese wordmark</desc>
+
+  <defs>
+    <linearGradient id="mark" x1="0%" y1="0%" x2="100%" y2="100%">
+      <stop offset="0%" stop-color="#6ea3ff"/>
+      <stop offset="100%" stop-color="#3d7be6"/>
+    </linearGradient>
+    <style>
+      .wordmark { fill: #1c1d21; }
+      @media (prefers-color-scheme: dark) {
+        .wordmark { fill: #f2f2f7; }
+      }
+    </style>
+  </defs>
+
+  <g transform="translate(0 8) scale(.32)" fill="url(#mark)">
+    <rect x="20" y="20" width="50" height="160" rx="8"/>
+    <rect x="80" y="20" width="100" height="55" rx="8"/>
+    <rect x="80" y="95" width="70" height="45" rx="8"/>
+  </g>
+  <text class="wordmark" x="78" y="56" font-family="-apple-system, BlinkMacSystemFont, Helvetica, Arial, sans-serif" font-size="48" font-weight="700">Ferese</text>
+</svg>