Update README.md

Author: mikibakaiki

test-package/README.md

@@ -7,3 +7,12 @@
 3. Run the command `npm run tsc` and a new folder named `test` should be created.
 
 4. Run the command `node test/test.js` and you should see an output in the console.
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+
+# To use the Bitwarden Generator script
+
+1. Run the command `npm install -g @bitwarden/cli`
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+2. Install python if you don't have. I recommend [pyenv](https://github.com/pyenv/pyenv).
+
+3. Run the command `./python generate_bw_passwords.py <number_of_passwords_you_want> <the_file_you_want_to_output_to>`