feat(comma): Added help method.

src/root.zig

@@ -7,6 +7,38 @@ const Command = comma.Command;
 
 pub const root: Command = .new(.{
     .name = "envr",
+    .short = "Manage your .env files.",
+    .long =
+    \\envr keeps your .env synced to a local, age encrypted database.
+    \\It is a safe and eay way to gather all your .env files in one place where they can
+    \\easily be backed by another tool such as restic or git.
+    \\All your data is stored in ~/data.age
+    \\
+    \\Getting started is easy:
+    \\
+    \\1. Create your configuration file and set up encrypted storage:
+    \\
+    \\> envr init
+    \\
+    \\2. Scan for existing .env files:
+    \\
+    \\> envr scan
+    \\
+    \\Select the files you want to back up from the interactive list.
+    \\
+    \\3. Verify that it worked:
+    \\
+    \\> envr list
+    \\
+    \\4. After changing any of your .env files, update the backup with:
+    \\
+    \\> envr sync
+    \\
+    \\5. If you lose a repository, after re-cloning the repo into the same path it was
+    \\at before, restore your backup with:
+    \\
+    \\> envr restore <path to repository> .env
+    ,
     .subcommands = &.{
         .{
             .name = "deps",
@@ -17,7 +49,10 @@ pub const root: Command = .new(.{
             \\ The deps command reports which binaries are available and which are not."
             ,
         },
-        .{ .name = "version" },
+        .{
+            .name = "version",
+            .short = "Show envr's version",
+        },
     },
 });
 
@@ -35,7 +70,7 @@ test "parse version" {
 }
 
 test "parse unknown" {
-    const args = &[_][]const u8{"bad", "value"};
+    const args = &[_][]const u8{ "bad", "value" };
     const cmd = root.parse(args);
 
     try std.testing.expectEqual(.unknown, cmd);