Add description to some entries (sindresorhus#1616)

Co-authored-by: Sindre Sorhus <sindresorhus@gmail.com>

readme.md

@@ -195,8 +195,8 @@
 - [HTML5](https://github.com/diegocard/awesome-html5#readme) - Markup language used for websites & web apps.
 - [SVG](https://github.com/willianjusten/awesome-svg#readme) - XML-based vector image format.
 - [Canvas](https://github.com/raphamorim/awesome-canvas#readme)
-- [KnockoutJS](https://github.com/dnbard/awesome-knockout#readme)
-- [Dojo Toolkit](https://github.com/petk/awesome-dojo#readme)
+- [KnockoutJS](https://github.com/dnbard/awesome-knockout#readme) - JavaScript library.
+- [Dojo Toolkit](https://github.com/petk/awesome-dojo#readme) - JavaScript toolkit.
 - [Inspiration](https://github.com/NoahBuscher/Inspire#readme)
 - [Ember](https://github.com/nmec/awesome-ember#readme) - App framework.
 - [Android UI](https://github.com/wasabeef/awesome-android-ui#readme)
@@ -248,25 +248,25 @@
 
 ## Back-End Development
 
-- [Flask](https://github.com/humiaozuzu/awesome-flask#readme)
+- [Flask](https://github.com/humiaozuzu/awesome-flask#readme) - Python framework.
 - [Docker](https://github.com/veggiemonk/awesome-docker#readme)
-- [Vagrant](https://github.com/iJackUA/awesome-vagrant#readme)
-- [Pyramid](https://github.com/uralbash/awesome-pyramid#readme)
+- [Vagrant](https://github.com/iJackUA/awesome-vagrant#readme) - Automation virtual machine environment.
+- [Pyramid](https://github.com/uralbash/awesome-pyramid#readme) - Python framework.
 - [Play1 Framework](https://github.com/PerfectCarl/awesome-play1#readme)
 - [CakePHP](https://github.com/friendsofcake/awesome-cakephp#readme) - PHP framework.
-- [Symfony](https://github.com/sitepoint-editors/awesome-symfony#readme)
+- [Symfony](https://github.com/sitepoint-editors/awesome-symfony#readme) - PHP framework.
 	- [Education](https://github.com/pehapkari/awesome-symfony-education#readme)
 - [Laravel](https://github.com/chiraggude/awesome-laravel#readme) - PHP framework.
 	- [Education](https://github.com/fukuball/Awesome-Laravel-Education#readme)
 - [Rails](https://github.com/ekremkaraca/awesome-rails#readme) - Web app framework for Ruby.
 	- [Gems](https://github.com/hothero/awesome-rails-gem#readme) - Packages.
-- [Phalcon](https://github.com/phalcon/awesome-phalcon#readme)
+- [Phalcon](https://github.com/phalcon/awesome-phalcon#readme) - PHP framework.
 - [Useful `.htaccess` Snippets](https://github.com/phanan/htaccess#readme)
 - [nginx](https://github.com/fcambus/nginx-resources#readme) - Web server.
-- [Dropwizard](https://github.com/stve/awesome-dropwizard#readme)
+- [Dropwizard](https://github.com/stve/awesome-dropwizard#readme) - Java framework.
 - [Kubernetes](https://github.com/ramitsurana/awesome-kubernetes#readme) - Open-source platform that automates Linux container operations.
-- [Lumen](https://github.com/unicodeveloper/awesome-lumen#readme)
-- [Serverless Framework](https://github.com/pmuens/awesome-serverless#readme)
+- [Lumen](https://github.com/unicodeveloper/awesome-lumen#readme) - PHP micro-framework.
+- [Serverless Framework](https://github.com/pmuens/awesome-serverless#readme) - Serverless computing and serverless architectures.
 - [Apache Wicket](https://github.com/PhantomYdn/awesome-wicket#readme) - Java web app framework.
 - [Vert.x](https://github.com/vert-x3/vertx-awesome#readme) - Toolkit for building reactive apps on the JVM.
 - [Terraform](https://github.com/shuaibiyy/awesome-terraform#readme) - Tool for building, changing, and versioning infrastructure.