Provide more detailed translation instructions (ordinals#2443)

README.md

@@ -249,3 +249,47 @@ There are some other things to watch out for but feel free to just start a
 translation and open a PR. Have a look at [this commit](https://github.com/ordinals/ord/commit/329f31bf6dac207dad001507dd6f18c87fdef355)
 for an idea of what to do. A maintainer will also help you integrate it into our
 build system.
+
+To align your translated version of the Handbook with reference to commit
+[#2427](https://github.com/ordinals/ord/pull/2426), here are some guiding
+commands to assist you. It is assumed that your local environment is already
+well-configured with [Python](https://www.python.org/),
+[Mdbook](https://github.com/rust-lang/mdBook),
+[mdBook i18n helper](https://github.com/rust-lang/mdbb) and that you've clone
+this repo.
+
+
+1. Run the following command to generate a new `pot` file, which is named as
+`messages.pot`:
+
+```
+MDBOOK_OUTPUT='{"xgettext": {"pot-file": "messages.pot"}}'
+mdbook build -d po
+```
+
+2. Run `msgmerge` where `xx.po` is your localized language version following
+the naming standard of [ISO639-1](https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes).
+This process will update the `po` file with the most recent original version:
+
+```
+msgmerge --update po/xx.po po/messages.pot
+```
+
+3. Look for `#, fuzzy`. The `mdBook-i18n-helper` tool utilizes the `"fuzzy"` tag
+to highlight sections that have been recently edited. You can proceed to perform
+the translation tasks by editing the `"fuzzy"`part.
+
+4. Execute the `mdbook` command. A demonstration in Chinese (`zh`) is given below:
+
+```
+mdbook build docs -d build
+MDBOOK_BOOK__LANGUAGE=zh mdbook build docs -d build/zh
+mv docs/build/zh/html docs/build/html/zh
+python3 -m http.server --directory docs/build/html --bind 127.0.0.1 8080
+```
+
+6. Upon verifying everything and ensuring all is in order, you can commit the
+modifications and progress to open a Pull Request (PR) on Github.
+(**Note**: Please ensure **ONLY** the **'xx.po'** file is pushed, other files
+such as '.pot' or files ending in '~' are **unnecessary** and should **NOT** be
+included in the Pull Request.）