Add GraalSystems in "powered-by"

[Treydone]

[mynameborat]

can you publish the website locally to make sure the changes look as expected?

[Treydone]

Sorry, I can't build the site locally... Even from the master branch with the command bundle exec jekyll build, I got an error

jekyll 3.4.5 | Error:  No header received back.
Traceback (most recent call last):
        49: from /usr/local/bin/jekyll:23:in `<main>'
        48: from /usr/local/bin/jekyll:23:in `load'
        47: from /var/lib/gems/2.7.0/gems/jekyll-3.4.5/exe/jekyll:13:in `<top (required)>'
        46: from /var/lib/gems/2.7.0/gems/mercenary-0.3.6/lib/mercenary.rb:19:in `program'
        45: from /var/lib/gems/2.7.0/gems/mercenary-0.3.6/lib/mercenary/program.rb:42:in `go'
        44: from /var/lib/gems/2.7.0/gems/mercenary-0.3.6/lib/mercenary/command.rb:220:in `execute'
        43: from /var/lib/gems/2.7.0/gems/mercenary-0.3.6/lib/mercenary/command.rb:220:in `each'
        42: from /var/lib/gems/2.7.0/gems/mercenary-0.3.6/lib/mercenary/command.rb:220:in `block in execute'
        41: from /var/lib/gems/2.7.0/gems/jekyll-3.4.5/lib/jekyll/commands/build.rb:16:in `block (2 levels) in init_with_program'
        40: from /var/lib/gems/2.7.0/gems/jekyll-3.4.5/lib/jekyll/commands/build.rb:34:in `process'
        39: from /var/lib/gems/2.7.0/gems/jekyll-3.4.5/lib/jekyll/commands/build.rb:63:in `build'
        38: from /var/lib/gems/2.7.0/gems/jekyll-3.4.5/lib/jekyll/command.rb:26:in `process_site'
        37: from /var/lib/gems/2.7.0/gems/jekyll-3.4.5/lib/jekyll/site.rb:69:in `process'
        36: from /var/lib/gems/2.7.0/gems/jekyll-3.4.5/lib/jekyll/site.rb:190:in `render'
        35: from /var/lib/gems/2.7.0/gems/jekyll-3.4.5/lib/jekyll/site.rb:449:in `render_docs'
        34: from /var/lib/gems/2.7.0/gems/jekyll-3.4.5/lib/jekyll/site.rb:449:in `each'
        33: from /var/lib/gems/2.7.0/gems/jekyll-3.4.5/lib/jekyll/site.rb:450:in `block in render_docs'
        32: from /var/lib/gems/2.7.0/gems/jekyll-3.4.5/lib/jekyll/site.rb:450:in `each'
        31: from /var/lib/gems/2.7.0/gems/jekyll-3.4.5/lib/jekyll/site.rb:452:in `block (2 levels) in render_docs'
        30: from /var/lib/gems/2.7.0/gems/jekyll-3.4.5/lib/jekyll/renderer.rb:82:in `run'
        29: from /var/lib/gems/2.7.0/gems/jekyll-3.4.5/lib/jekyll/renderer.rb:134:in `render_liquid'
        28: from /var/lib/gems/2.7.0/gems/jekyll-3.4.5/lib/jekyll/liquid_renderer/file.rb:26:in `render!'
        27: from /var/lib/gems/2.7.0/gems/jekyll-3.4.5/lib/jekyll/liquid_renderer/file.rb:47:in `measure_time'
        26: from /var/lib/gems/2.7.0/gems/jekyll-3.4.5/lib/jekyll/liquid_renderer/file.rb:27:in `block in render!'
        25: from /var/lib/gems/2.7.0/gems/jekyll-3.4.5/lib/jekyll/liquid_renderer/file.rb:40:in `measure_bytes'
        24: from /var/lib/gems/2.7.0/gems/jekyll-3.4.5/lib/jekyll/liquid_renderer/file.rb:28:in `block (2 levels) in render!'
        23: from /var/lib/gems/2.7.0/gems/liquid-3.0.6/lib/liquid/template.rb:222:in `render!'
        22: from /var/lib/gems/2.7.0/gems/liquid-3.0.6/lib/liquid/template.rb:209:in `render'
        21: from /var/lib/gems/2.7.0/gems/liquid-3.0.6/lib/liquid/template.rb:262:in `with_profiling'
        20: from /var/lib/gems/2.7.0/gems/liquid-3.0.6/lib/liquid/template.rb:210:in `block in render'
        19: from /var/lib/gems/2.7.0/gems/liquid-3.0.6/lib/liquid/block.rb:108:in `render'
        18: from /var/lib/gems/2.7.0/gems/liquid-3.0.6/lib/liquid/block.rb:122:in `render_all'
        17: from /var/lib/gems/2.7.0/gems/liquid-3.0.6/lib/liquid/block.rb:122:in `each'
        16: from /var/lib/gems/2.7.0/gems/liquid-3.0.6/lib/liquid/block.rb:135:in `block in render_all'
        15: from /var/lib/gems/2.7.0/gems/liquid-3.0.6/lib/liquid/profiler/hooks.rb:4:in `render_token_with_profiling'
        14: from /var/lib/gems/2.7.0/gems/liquid-3.0.6/lib/liquid/profiler.rb:80:in `profile_token_render'
        13: from /var/lib/gems/2.7.0/gems/liquid-3.0.6/lib/liquid/profiler/hooks.rb:5:in `block in render_token_with_profiling'
        12: from /var/lib/gems/2.7.0/gems/liquid-3.0.6/lib/liquid/block.rb:151:in `render_token'
        11: from /var/lib/gems/2.7.0/gems/jekyll-3.4.5/lib/jekyll/tags/highlight.rb:39:in `render'
        10: from /var/lib/gems/2.7.0/gems/jekyll-3.4.5/lib/jekyll/tags/highlight.rb:89:in `render_pygments'
         9: from /usr/lib/ruby/2.7.0/forwardable.rb:235:in `highlight'
         8: from /var/lib/gems/2.7.0/gems/pygments.rb-1.2.1/lib/pygments/popen.rb:236:in `highlight'
         7: from /var/lib/gems/2.7.0/gems/pygments.rb-1.2.1/lib/pygments/popen.rb:254:in `mentos'
         6: from /usr/lib/ruby/2.7.0/timeout.rb:110:in `timeout'
         5: from /usr/lib/ruby/2.7.0/timeout.rb:33:in `catch'
         4: from /usr/lib/ruby/2.7.0/timeout.rb:33:in `catch'
         3: from /usr/lib/ruby/2.7.0/timeout.rb:33:in `block in catch'
         2: from /usr/lib/ruby/2.7.0/timeout.rb:95:in `block in timeout'
         1: from /var/lib/gems/2.7.0/gems/pygments.rb-1.2.1/lib/pygments/popen.rb:285:in `block in mentos'
/var/lib/gems/2.7.0/gems/pygments.rb-1.2.1/lib/pygments/popen.rb:367:in `handle_header_and_return': No header received back. (MentosError)