Added deploy guide for firebase

[ycmjason]

No description provided.

[mdaffin]

Should the .firebaserc and firebase.json files not exist at the project root level? With "public": "docs/.vuepress/dist", (or where your actual dist exists) in the firebase.json? Then there is no need for a wrapper script and firebase deploy can be added to the package.json's script section directly.

[ycmjason]

Good idea! Will change this now! 🥂

[ycmjason]

@mdaffin I have updated the guide, do you want to review this again please?

[mdaffin]

Much better, though I think you should use docs/.vuepress/dist to keep it consistent with the netlify instructions. Then I think you also don't require the ignore part as everything in dist should be included?

[ycmjason]

@mdaffin
Yeah you are right. I have also fixed github pages script for not using docs/.vuepress/dist.