Highlight all metal toolings we have like devtools and tasks

[zenorocha]

• https://github.com/metal/metal-devtools
• https://github.com/metal/gulp-metal
• https://github.com/metal/metal-jest-serializer
• https://github.com/metal/babel-preset-metal-jsx
• https://github.com/metal/metal-flux
• https://github.com/metal/atom-metal-snippets
• https://github.com/metal/metal-tools-build-webcomponents
• https://github.com/metal/metal-tools-build-jquery
• https://github.com/metal/metal-tools-build-amd
• https://github.com/metal/metal-tools-build-rollup
• https://github.com/metal/metal-tools-build-globals
• https://github.com/metal/metal-tools-soy
• https://github.com/metal/babel-preset-metal-resolve-source
• https://github.com/metal/generator-metal
• https://github.com/metal/metal-redux