Gagal hosting di pages github

Assalamualaikum tadi saya nemu error, maksudnya kurang berhasil ketika hosting di github , saya sudah buat repositorinya ini link repo saya https://github.com/erwinprasetyo97/portofolio.github.io terus saya ketik di command line sesuai video di bagian hosting dengan github

 PS D:\PRASETYO\WPU\BELAJAR\NGOBAR\portofolio> ls

    Directory: D:\PRASETYO\WPU\BELAJAR\NGOBAR\portofolio

Mode                LastWriteTime         Length Name
----                -------------         ------ ----
d-----         1/5/2018  10:56 PM                css
d-----        1/13/2018  11:48 AM                fonts
d-----        1/15/2018  11:08 AM                img
d-----         1/9/2018   1:38 PM                js
d-----        1/28/2018   4:37 PM                portofolio.github.io
-a----        1/12/2018   7:37 PM           8655 index.php

PS D:\PRASETYO\WPU\BELAJAR\NGOBAR\portofolio> cd portofolio.github.io
PS D:\PRASETYO\WPU\BELAJAR\NGOBAR\portofolio\portofolio.github.io> ls
PS D:\PRASETYO\WPU\BELAJAR\NGOBAR\portofolio\portofolio.github.io> atom index.php
atom : The term 'atom' is not recognized as the name of a cmdlet, function, script file, or
operable program. Check the spelling of the name, or if a path was included, verify that the
path is correct and try again.
At line:1 char:1
atom index.php
~~~~
    + CategoryInfo          : ObjectNotFound: (atom:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

PS D:\PRASETYO\WPU\BELAJAR\NGOBAR\portofolio\portofolio.github.io> cd ..
PS D:\PRASETYO\WPU\BELAJAR\NGOBAR\portofolio> git clone https://github.com/erwinprasetyo97/por
tofolio.github.io.git
Cloning into 'portofolio.github.io'...
warning: You appear to have cloned an empty repository.
PS D:\PRASETYO\WPU\BELAJAR\NGOBAR\portofolio> ls

    Directory: D:\PRASETYO\WPU\BELAJAR\NGOBAR\portofolio

Mode                LastWriteTime         Length Name
----                -------------         ------ ----
d-----         1/5/2018  10:56 PM                css
d-----        1/13/2018  11:48 AM                fonts
d-----        1/15/2018  11:08 AM                img
d-----         1/9/2018   1:38 PM                js
d-----        1/28/2018   5:06 PM                portofolio.github.io
-a----        1/12/2018   7:37 PM           8655 index.html

PS D:\PRASETYO\WPU\BELAJAR\NGOBAR\portofolio> cd portofolio.github.io
PS D:\PRASETYO\WPU\BELAJAR\NGOBAR\portofolio\portofolio.github.io> touch index.html
touch : The term 'touch' is not recognized as the name of a cmdlet, function, script file,
or operable program. Check the spelling of the name, or if a path was included, verify that
the path is correct and try again.
At line:1 char:1
touch index.html
~~~~~
    + CategoryInfo          : ObjectNotFound: (touch:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

PS D:\PRASETYO\WPU\BELAJAR\NGOBAR\portofolio\portofolio.github.io> git add .
warning: LF will be replaced by CRLF in css/bootstrap-theme.css.
The file will have its original line endings in your working directory.
warning: LF will be replaced by CRLF in css/bootstrap-theme.min.css.
The file will have its original line endings in your working directory.
warning: LF will be replaced by CRLF in css/bootstrap.css.
The file will have its original line endings in your working directory.
warning: LF will be replaced by CRLF in css/bootstrap.min.css.
The file will have its original line endings in your working directory.
warning: LF will be replaced by CRLF in fonts/glyphicons-halflings-regular.svg.
The file will have its original line endings in your working directory.
warning: LF will be replaced by CRLF in js/bootstrap.js.
The file will have its original line endings in your working directory.
warning: LF will be replaced by CRLF in js/bootstrap.min.js.
The file will have its original line endings in your working directory.
warning: LF will be replaced by CRLF in js/jquery-3.2.1.min.js.
The file will have its original line endings in your working directory.
warning: LF will be replaced by CRLF in js/jquery.easing.1.3.js.
The file will have its original line endings in your working directory.
warning: LF will be replaced by CRLF in js/npm.js.
The file will have its original line endings in your working directory.
PS D:\PRASETYO\WPU\BELAJAR\NGOBAR\portofolio\portofolio.github.io> git commit -m "portofolio_1
"
[master (root-commit) b5e89f0] portofolio_1
 29 files changed, 10622 insertions(+)
 create mode 100644 css/bootstrap-theme.css
 create mode 100644 css/bootstrap-theme.css.map
 create mode 100644 css/bootstrap-theme.min.css
 create mode 100644 css/bootstrap-theme.min.css.map
 create mode 100644 css/bootstrap.css
 create mode 100644 css/bootstrap.css.map
 create mode 100644 css/bootstrap.min.css
 create mode 100644 css/bootstrap.min.css.map
 create mode 100644 css/style.css
 create mode 100644 fonts/glyphicons-halflings-regular.eot
 create mode 100644 fonts/glyphicons-halflings-regular.svg
 create mode 100644 fonts/glyphicons-halflings-regular.ttf
 create mode 100644 fonts/glyphicons-halflings-regular.woff
 create mode 100644 fonts/glyphicons-halflings-regular.woff2
 create mode 100644 img/Erbagus.jpg
 create mode 100644 img/bg2.png
 create mode 100644 img/cahbagus.jpg
 create mode 100644 img/erwin.jpg
 create mode 100644 img/header-bg.jpg
 create mode 100644 img/logo-LPSE3.jpg
 create mode 100644 img/portofolio/1.jpg
 create mode 100644 img/portofolio/2.jpg
 create mode 100644 index.html
 create mode 100644 js/bootstrap.js
 create mode 100644 js/bootstrap.min.js
 create mode 100644 js/jquery-3.2.1.min.js
 create mode 100644 js/jquery.easing.1.3.js
 create mode 100644 js/npm.js
 create mode 100644 js/script.js
PS D:\PRASETYO\WPU\BELAJAR\NGOBAR\portofolio\portofolio.github.io> git remote add origin
usage: git remote add [<options>] <name> <url>

    -f, --fetch           fetch the remote branches
    --tags                import all tags and associated objects when fetching
                          or do not fetch any tag at all (--no-tags)
    -t, --track <branch>  branch(es) to track
    -m, --master <branch>
                          master branch
    --mirror[=<push|fetch>]
                          set up remote as a mirror to push to or fetch from

PS D:\PRASETYO\WPU\BELAJAR\NGOBAR\portofolio\portofolio.github.io> git push -u origin master
Counting objects: 36, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (36/36), done.
Writing objects: 100% (36/36), 2.52 MiB | 169.00 KiB/s, done.
Total 36 (delta 6), reused 0 (delta 0)
remote: Resolving deltas: 100% (6/6), done.
To https://github.com/erwinprasetyo97/portofolio.github.io.git
 * [new branch]      master -> master
Branch 'master' set up to track remote branch 'master' from 'origin'.
PS D:\PRASETYO\WPU\BELAJAR\NGOBAR\portofolio\portofolio.github.io>

tapi setalah saya copy dan pastekan link portofolio.github.io saya malah tidak tampil web statis saya , terimakasih mohon solusi nya wassalamualaikum