Usability improvements

• Correct name of 'Usage Builder' in 'usage' section - move this comment below the 'Usage' header
• Increase size of 'Usage section on right of module provider view
• Rephrase 'NOTE - the {{ example_auth_token }} placeholder must be replaced with you '{{ ANALYTICS_TOKEN_PHRASE }}'
• Try to make 'See Usage builder' in usage section a link to open the tab - See #130 (closed)
• Add header "Add values to generate usage example" to usage builder tab
• Make README headers smaller
• Update an empty search to return all results