create guest book about youngho

[0k1019]

Happy to meet DevFest.

[TravisBuddy]

Travis tests have failed

Hey @y0ung1019,
Please read the following log in order to understand the failure reason.
It'll be awesome if you fix what's wrong and commit the changes.

Ruby: 2.3.1

View build log

yamllint _guestbook/*

_guestbook/dayoung.yaml
  5:81      warning  line too long (93 > 80 characters)  (line-length)

_guestbook/haesunpark.yaml
  1:1       warning  too many blank lines (1 > 0)  (empty-lines)
  8:9       error    trailing spaces  (trailing-spaces)

_guestbook/shinye.yaml
  5:81      warning  line too long (134 > 80 characters)  (line-length)

_guestbook/youngho.yaml
  7:10      error    syntax error: found character '@' that cannot start any token

_guestbook/ywkim.yaml
  6:10      error    trailing spaces  (trailing-spaces)
  7:9       error    trailing spaces  (trailing-spaces)

ruby -Itest tests/tests.rb

Loaded suite tests/tests
Started
E
================================================================================
Error: test_frontmattervalidation(TestFrontMatterValidation): Psych::SyntaxError: (./_guestbook/youngho.yaml): found character that cannot start any token while scanning for the next token at line 7 column 10
/home/travis/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/psych.rb:377:in `parse'
/home/travis/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/psych.rb:377:in `parse_stream'
/home/travis/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/psych.rb:325:in `parse'
/home/travis/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/psych.rb:252:in `load'
/home/travis/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/psych.rb:471:in `block in load_file'
/home/travis/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/psych.rb:471:in `open'
/home/travis/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/psych.rb:471:in `load_file'
tests/tests.rb:8:in `block in test_frontmattervalidation'
      5: 
      6:     def test_frontmattervalidation
      7:         Dir['./_guestbook/*.yaml'].each do |path|
  =>  8:             data = YAML.load_file(path)
      9: 
     10:             keys = data.keys.map { |k| k.downcase }
     11:             assert(keys.include?("name"), "name missing: #{path}")
tests/tests.rb:7:in `each'
tests/tests.rb:7:in `test_frontmattervalidation'
================================================================================


Finished in 0.003160228 seconds.
--------------------------------------------------------------------------------
1 tests, 3 assertions, 0 failures, 1 errors, 0 pendings, 0 omissions, 0 notifications
0% passed
--------------------------------------------------------------------------------
316.43 tests/s, 949.30 assertions/s

bundle exec jekyll build

Configuration file: /home/travis/build/PandelisZ/workshop-guestbook/_config.yml
            Source: /home/travis/build/PandelisZ/workshop-guestbook
       Destination: /home/travis/build/PandelisZ/workshop-guestbook/_site
 Incremental build: disabled. Enable with --incremental
      Generating... 
jekyll 3.7.3 | Error:  (/home/travis/build/PandelisZ/workshop-guestbook/_guestbook/youngho.yaml): found character that cannot start any token while scanning for the next token at line 7 column 10

TravisBuddy Request Identifier: 0c039060-f2ea-11e9-a94e-c51b88d78b8d