Migrate manual from haskus-manual

Convert it to Typst. Need more work but it will be done later.

doc/manual/Makefile

@@ -0,0 +1,5 @@
+watch:
+	./typst.sh watch haskus.typ
+
+compile:
+	./typst.sh compile haskus.typ

doc/manual/haskus.typ

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+#set text(font: "Neo Sans Std")
+
+#set heading(numbering: "1.1.1.1   ")
+#show heading: it => {
+  set text(
+      weight: "medium"
+    , rgb("#0860a8")
+    , font: "Share Tech Mono"
+  )
+  v(8pt)
+  it
+}
+
+// Page break before level 1 titles
+#show heading.where(level:1): it => {
+  pagebreak(weak: true)
+  it
+}
+
+#show raw.where(block: true): it => block(
+    fill: rgb("#fae1df")
+  , inset: 8pt
+  , radius: 5pt
+  , text(fill: rgb("#1c2826"), it)
+)
+
+#show raw.where(block: false): it => highlight(
+    fill: rgb("#fae1df")
+  , text(fill: rgb("#1c2826"), it)
+)
+
+// Palette:
+// 0680A8 (blue)
+// D64550 (red)
+// FAE1DF (rose)
+// 1C2826 (black)
+// CFFFE5 (green)
+
+#set document(
+    title: "Haskus packages manual"
+  , author: "Sylvain Henry"
+  , date: auto
+)
+
+#set page(
+    numbering: "1"
+  , number-align: right
+)
+
+// Front page
+
+#page(
+  numbering: none,
+  align(center,
+    [
+      #v(40%)
+      #text(
+      size: 26pt,
+      [
+      Haskus Computer Manual
+      ]
+    )\
+    #v(5%)
+    #text(
+      size: 22pt,
+      [
+      Sylvain Henry
+      ]
+    )
+    #v(5%)
+    #text(
+      size: 12pt,
+      [
+      Version: #datetime.today().display()
+      ]
+    )
+  ]
+  )
+)
+
+#outline()
+
+#include "src/intro.typ"
+#include "src/stdlib.typ"
+#include "src/system.typ"
+#include "src/compiler.typ"
+#include "src/graphics.typ"
+
+#bibliography(
+    style: "ieee",
+    "src/biblio.yml"
+  )

doc/manual/src/biblio.yml

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+linux-initramfs:
+  type: Web
+  title: initramfs buffer format
+  author:
+    - Al Viro
+    - H. Peter Anvin
+  date: 2002-01-13
+  url: https://www.kernel.org/doc/html/latest/driver-api/early-userspace/buffer-format.html

doc/manual/src/compiler.typ

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+= Compilers
+
+#include "compiler/x86.typ"