Move documents to a sub-directory

to support multi-language selector.

docs/overrides/javascripts/katex.js

@@ -0,0 +1,10 @@
+document$.subscribe(({ body }) => {
+  renderMathInElement(body, {
+    delimiters: [
+      { left: "$$", right: "$$", display: true },
+      { left: "$", right: "$", display: false },
+      { left: "\\(", right: "\\)", display: false },
+      { left: "\\[", right: "\\]", display: true },
+    ],
+  });
+});

docs/overrides/javascripts/mathjax.js

@@ -0,0 +1,16 @@
+window.MathJax = {
+  tex: {
+    inlineMath: [["\\(", "\\)"]],
+    displayMath: [["\\[", "\\]"]],
+    processEscapes: true,
+    processEnvironments: true,
+  },
+  options: {
+    ignoreHtmlClass: ".*|",
+    processHtmlClass: "arithmatex",
+  },
+};
+
+document$.subscribe(() => {
+  MathJax.typesetPromise();
+});

docs/overrides/stylesheets/extra.css

@@ -0,0 +1,110 @@
+/* Color Settings */
+/* https://github.com/squidfunk/mkdocs-material/blob/6b5035f5580f97532d664e3d1babf5f320e88ee9/src/assets/stylesheets/main/_colors.scss */
+/* https://squidfunk.github.io/mkdocs-material/setup/changing-the-colors/#custom-colors */
+:root > * {
+  --md-primary-fg-color: #ffffff;
+  --md-primary-bg-color: #1d1d20;
+
+  --md-default-fg-color: #1d1d20;
+  --md-default-bg-color: #ffffff;
+
+  --md-code-fg-color: #1d1d20;
+
+  --md-accent-fg-color: #999;
+
+  --md-admonition-fg-color: #1d1d20;
+
+  --md-typeset-color: #1d1d20;
+  --md-typeset-a-color: #2aa996;
+}
+
+[data-md-color-scheme="slate"] {
+  --md-primary-fg-color: #22272e;
+  --md-primary-bg-color: #adbac7;
+
+  --md-default-fg-color: #adbac7;
+  --md-default-bg-color: #22272e;
+
+  --md-code-bg-color: #1D2126;
+  --md-code-fg-color: #adbac7;
+
+  --md-accent-fg-color: #aaa;
+
+  --md-admonition-fg-color: #adbac7;
+
+  --md-footer-fg-color: #adbac7;
+
+  --md-typeset-color: #adbac7;
+  --md-typeset-a-color: #21c8b8 !important;
+}
+
+/* https://github.com/squidfunk/mkdocs-material/issues/4832#issuecomment-1374891676 */
+.md-nav__link[for] {
+  color: var(--md-default-fg-color) !important;
+}
+
+/* Center Markdown Tables (requires md_in_html extension) */
+.center-table {
+  text-align: center;
+}
+
+/* Reset alignment for table cells */
+.md-typeset .center-table :is(td, th):not([align]) {
+  text-align: initial;
+}
+
+/* Font size */
+.md-typeset {
+  font-size: 0.75rem;
+  line-height: 1.5;
+}
+
+.md-typeset pre {
+  font-size: 0.95em;
+}
+
+/* Markdown Header */
+/* https://github.com/squidfunk/mkdocs-material/blob/dcab57dd1cced4b77875c1aa1b53467c62709d31/src/assets/stylesheets/main/_typeset.scss */
+.md-typeset h1 {
+  font-weight: 400;
+  color: var(--md-default-fg-color);
+}
+
+.md-typeset h2 {
+  font-weight: 400;
+}
+
+.md-typeset h3 {
+  font-weight: 500;
+}
+
+.md-typeset h5 {
+  text-transform: none;
+}
+
+/* Image align center */
+.center {
+  display: block;
+  margin: 0 auto;
+}
+
+/* font-family setting for Win10 */
+body {
+  --md-text-font-family: -apple-system, BlinkMacSystemFont,
+    var(--md-text-font, _), Helvetica, Arial, sans-serif;
+  --md-code-font-family: var(--md-code-font, _), SFMono-Regular, Consolas, Menlo,
+    -apple-system, BlinkMacSystemFont, var(--md-text-font, _), monospace;
+}
+
+/* max height of code block */
+/* https://github.com/squidfunk/mkdocs-material/issues/3444 */
+.md-typeset pre > code {
+  max-height: 25rem;
+}
+
+/* Make the picture not glare in dark theme */
+[data-md-color-scheme="slate"] .md-typeset img,
+[data-md-color-scheme="slate"] .md-typeset svg,
+[data-md-color-scheme="slate"] .md-typeset video {
+  filter: brightness(0.85) invert(0.05);
+}