Add reuse folder to npmignore and fix docs

Author: mkunev

.npmignore

@@ -10,4 +10,5 @@ node_modules/
 jest.config.js
 tsconfig.json
 .eslintrc.json
-.prettierrc.json
+.prettierrc.json
+.reuse

docs/Gemfile

@@ -12,7 +12,7 @@ source "https://rubygems.org"
 gem "minima", "~> 2.5"
 # If you want to use GitHub Pages, remove the "gem "jekyll"" above and
 # uncomment the line below. To upgrade, run `bundle update github-pages`.
-#  gem "github-pages", group: :jekyll_plugins
+ gem "github-pages", group: :jekyll_plugins
 # If you have any plugins, put them here!
 group :jekyll_plugins do
   gem "jekyll-feed", "~> 0.12"