add module docs

deno.json

@@ -1,6 +1,6 @@
 {
   "name": "@fishballpkg/acme",
-  "version": "0.5.3",
+  "version": "0.5.4",
   "exports": {
     ".": "./src/mod.ts",
     "./Dns01ChallengeUtils": "./src/Dns01ChallengeUtils.ts",

src/Dns01ChallengeUtils.ts

@@ -1,3 +1,9 @@
+/**
+ * @module
+ *
+ * Utility functions to help you with `dns-01` challenge
+ */
+
 /**
  * Lookup the DNS `TXT` record for `domain` every `interval`
  * (in ms, default: 5000) until the record matches `pollUntil`.

src/mod.ts

@@ -1,10 +1,25 @@
+/**
+ * @module
+ *
+ * A zero-dependency, minimalistic, opiniated Automatic Certificate Management Environment
+ * (ACME) client written in TypeScript from scratch. We aim to simplify certificate
+ * generation by removing the need to deal with cryptographic options, external tools like
+ * OpenSSL, or other low-level details.
+ */
+
+import * as Dns01ChallengeUtils from "./Dns01ChallengeUtils.ts";
+
 export * from "./AcmeAccount.ts";
 export * from "./AcmeAuthorization.ts";
 export * from "./AcmeChallenge.ts";
 export * from "./AcmeClient.ts";
 export * from "./AcmeOrder.ts";
 
-/** Utility functions to help you with `dns-01` challenge */
-export * as Dns01ChallengeUtils from "./Dns01ChallengeUtils.ts";
-
 export * from "./ACME_DIRECTORY_URLS.ts";
+
+export {
+  /**
+   * Utility functions to help you with `dns-01` challenge
+   */
+  Dns01ChallengeUtils,
+};

src/utils/generateCSR.ts

@@ -1,3 +1,9 @@
+/**
+ * @module
+ *
+ * Utility function to generate a Certificate Signing Request (CSR) in DER format
+ */
+
 import { splitAtIndex } from "./array.ts";
 import { ASN1 } from "./ASN1.ts";
 import { sign } from "./crypto.ts";