removed freeware icons from Chinese:

syncing between languages also.

README_th-TH.md

@@ -275,7 +275,7 @@
 #### Java
 - [![Open-Source Software][OSS Icon]](https://www.bluej.org/versions.html) [BlueJ](http://bluej.org/) - A free Java Development Environment designed for beginners, used by millions worldwide.
 - [Eclipse](https://eclipse.org/ide/) - Eclipse is famous for our Java Integrated Development Environment (IDE), but can also download packages to support C/C++ IDE and PHP IDE.
-- [IntelliJ IDEA](https://www.jetbrains.com/idea/) - Powerful IDE for JAVA.
+- [![Open-Source Software][OSS Icon]](https://github.com/JetBrains/intellij-community) [IntelliJ IDEA](https://www.jetbrains.com/idea/) - Powerful IDE for JAVA. The Community version is open sourced.
 
 #### Javascript
 - [Webstorm](https://www.jetbrains.com/webstorm/) - Powerful IDE for modern JavaScript development, made by JetBrains.
@@ -425,7 +425,7 @@
 - [Hiri](https://www.hiri.com/) - Hiri is a business focused desktop e-mail client for sending and receiving e-mails, managing calendars, contacts, and tasks.
 - [![Open-Source Software][OSS Icon]](https://cgit.kde.org/kmail.git/) [KMail](https://www.kde.org/applications/internet/kmail/) - KMail is the email component of Kontact, the integrated personal information manager from KDE.
 - [![Open-Source Software][OSS Icon]](https://github.com/pulb/mailnag) [Mailnag](https://launchpad.net/~pulb/+archive/ubuntu/mailnag) - Mailnag is a daemon program that checks POP3 and IMAP servers for new mail.
-- [![Open-Source Software][OSS Icon]](https://github.com/nylas/nylas-mail) [Nylas Mail](https://www.nylas.com/download) - An extensible desktop mail app built on the modern web.
+- [Mailspring](https://getmailspring.com/) - A beautiful, fast and maintained fork of Nylas Mail by one of the original authors.
 - [![Open-Source Software][OSS Icon]](http://sylpheed.sraoss.jp/en/download.html#stable) [Sylpheed](http://sylpheed.sraoss.jp/en/) - Lightweight and user-friendly e-mail client.
 - [![Open-Source Software][OSS Icon]](https://releases.mozilla.org/pub/thunderbird/) [Thunderbird](https://www.mozilla.org/en-US/thunderbird/) - Thunderbird is a free email application that’s easy to set up and customize and it’s loaded with great features.
 - [![Open-Source Software][OSS Icon]](https://cgit.kde.org/trojita.git/) [Trojita](http://trojita.flaska.net/download.html) - A super fast desktop email client for Linux.
@@ -523,6 +523,7 @@
 - [![Open-Source Software][OSS Icon]](https://github.com/aseprite/aseprite/) [Aseprite](https://www.aseprite.org/) - Animated sprite editor & pixel art tool.
 - [![Open-Source Software][OSS Icon]](http://archive.blender.org/download/source-code/index.html) [Blender](https://www.blender.org/) - a free and open source complete 3D creation pipeline for artists and small teams.
 - [![Open-Source Software][OSS Icon]](https://sourceforge.net/projects/cinepaint/) [Cinepaint](http://www.cinepaint.org/) - Open source deep paint software.
+- [![Open-Source Software][OSS Icon]](https://github.com/lettier/gifcurry) [Gifcurry](https://lettier.github.io/gifcurry/) - Your open source video to GIF maker built with Haskell. 
 - [Gravit](https://www.designer.io/) - Gravit Designer is a full featured free vector design app right at your fingertip.
 - [Heron Animation](https://www.heronanimation.brick-a-brack.com/#download) - A free stop animation making program.
 - [![Open-Source Software][OSS Icon]](https://github.com/inkscape/inkscape) [Inkscape](https://inkscape.org/en/) - A powerful, free design tool for you , whether you are an illustrator, designer, web designer or just someone who needs to create some vector imagery.
@@ -542,6 +543,7 @@
 - ![Nonfree][Money icon] [Aftershot](http://www.aftershotpro.com/en/products/aftershot/pro/) - A powerful alternative to Adobe Photoshop.
 - [![Open-Source Software][OSS Icon]](https://github.com/darktable-org/darktable) [Darktable](http://www.darktable.org/) - Darktable is an open source photography workflow application and RAW developer.
 - [![Open-Source Software][OSS Icon]](https://github.com/GNOME/gimp) [GIMP](https://www.gimp.org/downloads/) - GIMP is a freely distributed program for such tasks as photo retouching, image composition and image authoring.
+- [![Open-Source Software][OSS Icon]](http://www.graphicsmagick.org/) [GraphicsMagick](http://www.graphicsmagick.org/) - GraphicsMagick is the swiss army knife of image processing.
 - [![Open-Source Software][OSS Icon]](http://hugin.sourceforge.net/) [Hugin](http://hugin.sourceforge.net/) - an easy to use cross-platform panoramic imaging toolchain based on Panorama Tools.
 - [![Open-Source Software][OSS Icon]](https://github.com/ImageMagick/ImageMagick) [ImageMagik](http://www.imagemagick.org/script/index.php) - ImageMagick is a suite of command-line utilities for modifying and working with images.
 - [![Open-Source Software][OSS Icon]](https://github.com/jarun/imgp) [imgp](https://github.com/jarun/imgp) - Blazing fast terminal image resizer and rotator.
@@ -801,6 +803,7 @@
 ### Terminal
 - [![Open-Source Software][OSS Icon]](https://github.com/jwilm/alacritty) [Alacritty](https://github.com/jwilm/alacritty) - A cross-platform, GPU-accelerated terminal emulator.
 - [![Open-Source Software][OSS Icon]](https://github.com/Swordfish90/cool-retro-term) [Cool Retro Term](https://github.com/Swordfish90/cool-retro-term) - A good looking terminal that mimicks the old cathode display.
+- [![Open-Source Software][OSS Icon]](https://sourceforge.net/projects/dban/) [DBAN](https://dban.org/) - Delete information stored on hard disk drives (HDDs) in PC laptops, desktops or servers.
 - [![Open-Source Software][OSS Icon]](https://github.com/GNOME) [GnomeTerminal](https://help.gnome.org/users/gnome-terminal/stable/) - A widely preinstalled terminal emulator in Linux world.
 - [![Open-Source Software][OSS Icon]](https://github.com/Guake/guake) [Guake](http://guake.org/) - Guake is a top-down terminal for Gnome.
 - [![Open-Source Software][OSS Icon]](https://github.com/zeit/hyper) [Hyper](https://hyper.is/) - A terminal built on web technologies.
@@ -817,6 +820,7 @@
 - [Termius](https://www.termius.com/) - cross-platform terminal with built-in SSH and Telnet.
 - [![Open-Source Software][OSS Icon]](https://github.com/gnunn1/tilix) [Tilix](https://gnunn1.github.io/tilix-web/) - A tiling terminal emulator for Linux using GTK+ 3.
 - [![Open-Source Software][OSS Icon]](https://github.com/tmux/tmux) [Tmux](https://tmux.github.io/) - It lets you switch easily between several programs in one terminal, detach them (they keep running in the background) and reattach them to a different terminal. And do a lot more.
+- [![Open-Source Software][OSS Icon]](https://github.com/cosmos72/twin) [Twin](https://github.com/cosmos72/twin/) - Fast, lightweight text-mode window environment with mouse support. Enables multiple terminals in a single Linux console, terminal or X11 window. It can be detached (keeps running in background) and reattached to a different console, terminal or X11 server. Works on Linux, Mac OS X and BSD
 - [![Open-Source Software][OSS Icon]](https://github.com/railsware/upterm) [Upterm](https://github.com/railsware/upterm) - Upterm (formerly Black Screen) is an IDE in the world of terminals. Strictly speaking, it's both a terminal emulator and an interactive shell based on [Electron](https://electron.atom.io/).
 - [![Open-Source Software][OSS Icon]](http://invisible-island.net/xterm/) [Xterm](http://invisible-island.net/xterm/) - The Xterm program is a terminal emulator for the X Window System. It provides DEC VT102 and Tektronix 4014 compatible terminals for programs that can't use the window system directly.
 - [![Open-Source Software][OSS Icon]](https://www.kde.org/applications/system/yakuake/development) [Yakuake](https://yakuake.kde.org/) - A Quake-style terminal emulator based on KDE Konsole technology.