fix: add exports (#217)

Otherwise we can't import

Author: achingbrain

package.json

@@ -10,6 +10,11 @@
     "!dist/test",
     "!**/*.tsbuildinfo"
   ],
+  "exports": {
+    ".": {
+      "import": "./dist/src/index.js"
+    }
+  },
   "eslintConfig": {
     "extends": "ipfs",
     "parserOptions": {