chore: use pnpm as package manager

Author: RetricSu

docs/develop.md

@@ -23,3 +23,13 @@ All the script configs are generated by `ckb list-hashes` so you don't need to c
 ### Update templates
 
 edit the things in `templates/v${version}`
+
+### Install dependencies
+
+Since we use `pnpm` as a developing package manager, people install `offckb` by `npm` would require a `package-lock.json` file.
+
+```sh
+npm i --package-lock-only
+```
+
+Remember to run the above command when trying to publish a new version.