docs(design): remove SVG, use PNG logo only

SVG icon is no longer in use. public/logo.png (1024x1024 RGBA) is
the single logo asset. DESIGN.md updated accordingly: SVG snippet
removed, wordmark pattern and <head> references updated to PNG.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

node_modules/thenify/History.md

@@ -0,0 +1,11 @@
+
+3.3.1 / 2020-06-18
+==================
+
+**fixes**
+  * [[`0d94a24`](http://github.com/thenables/thenify/commit/0d94a24eb933bc835d568f3009f4d269c4c4c17a)] - fix: remove eval (#30) (Yiyu He <<dead_horse@qq.com>>)
+
+3.3.0 / 2017-05-19
+==================
+
+  * feat: support options.multiArgs and options.withCallback (#27)