[Pages]Update Hexo framework guides, remove unnecessary steps

[ousugo]

Summary

According to the Hexo official documentation, when hexo init is executed, the dependency installation is complete and there is no need to perform npm install to install the dependency.

Screenshots (optional)

Documentation checklist

• The documentation style guide has been adhered to.
• If a larger change - such as adding a new page- an issue has been opened in relation to any incorrect or out of date information that this PR fixes.
• Files which have changed name or location have been allocated redirects.

[ToriLindsay]

@dario-piotrowicz @jculvey @GregBrimble Would someone mind just confirming this line is ok to remove? Seems that way from the documentation they linked but I just want to double check. Thanks!

[dario-piotrowicz]

Looks good to me! thanks for the fix @ousugo 🫶

---

Thanks for the ping @ToriLindsay, I do think the change is definitely correct 👍

[holopin-bot]

Congratulations @ousugo, the maintainer of this repository has issued you a holobyte! Here it is: https://holopin.io/holobyte/cm65bmzqx49470cl809ebvmcr

This badge can only be claimed by you, so make sure that your GitHub account is linked to your Holopin account. You can manage those preferences here: https://holopin.io/account.
Or if you're new to Holopin, you can simply sign up with GitHub, which will do the trick!