feat: Add docs package which uses docusaurus internally

packages/docs/src/css/custom.css

@@ -0,0 +1,28 @@
+/**
+ * Any CSS included here will be global. The classic template
+ * bundles Infima by default. Infima is a CSS framework designed to
+ * work well for content-centric websites.
+ */
+
+/* You can override the default Infima variables here. */
+:root {
+  --ifm-color-primary: #001F52;
+  --ifm-color-primary-dark: rgb(33, 175, 144);
+  --ifm-color-primary-darker: rgb(31, 165, 136);
+  --ifm-color-primary-darkest: rgb(26, 136, 112);
+  --ifm-color-primary-light: rgb(70, 203, 174);
+  --ifm-color-primary-lighter: rgb(102, 212, 189);
+  --ifm-color-primary-lightest: rgb(146, 224, 208);
+  --ifm-code-font-size: 95%;
+}
+
+.docusaurus-highlight-code-line {
+  background-color: rgba(0, 0, 0, 0.1);
+  display: block;
+  margin: 0 calc(-1 * var(--ifm-pre-padding));
+  padding: 0 var(--ifm-pre-padding);
+}
+
+html[data-theme='dark'] .docusaurus-highlight-code-line {
+  background-color: rgba(0, 0, 0, 0.3);
+}

packages/docs/src/pages/markdown-page.md

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+---
+title: Markdown page example
+---
+
+# Markdown page example
+
+You don't need React to write simple standalone pages.