Generate documenation (manpages, etc.) from help strings.

src/generate_ghostty_1_markdown.zig

@@ -0,0 +1,16 @@
+const std = @import("std");
+const gen = @import("generate_markdown.zig");
+
+pub fn main() !void {
+    var gpa = std.heap.GeneralPurposeAllocator(.{}){};
+    const alloc = gpa.allocator();
+
+    const writer = std.io.getStdOut().writer();
+
+    try gen.substitute(alloc, @embedFile("doc/ghostty_1_header.md"), writer);
+
+    try gen.generate_actions(writer);
+    try gen.generate_config(writer, true);
+
+    try gen.substitute(alloc, @embedFile("doc/ghostty_1_footer.md"), writer);
+}