Github pages, Jekyll, jasper

I want to host a website on the same repository as my project using Jekyll, but I want it filed neatly in its own subfloder like so:
/
|- File1
|- File2
|- jasper2
|- repo-pages

1. Create a new branch called "gh-pages"
```git checkout -b gh-pages```
1b. Change back to the master branch
```git checkout master```
2. If you want to use the jasper2 theme, you can clone it in your directory (or simply download its content):
``` git clone git@github.com:jekyller/jasper2.git```
3. create a new folder called "repo-pages" in which Jekyll will generate the static pages
```mkdir repo-pages```
4. In the "_config.yml" file, change the configuration:
```
username: parastuffs
repo: esnu
branch: gh-pages
relative_source: ../jasper2/
destination: ../repo-pages/
```
5. Generate the static pages from the "jasper2" folder:
```bundle exec jekyll serve```
6. From the repo's root folder, push the subtree:
```
git checkout gh-pages
git add repo-pages/
git commit -m "pages"
git subtree push --prefix repo-pages origin gh-pages
```
This last command is ```git subtree push --prefix <folder> origin <branch>``` to set the root of the branch to folder.

Now check online if everything is OK.