Merge pull request #273 from cs01/master

add gdbgui - graphical debugger for Rust

README.md

@@ -185,6 +185,7 @@ See also [Friends of Rust](https://www.rust-lang.org/friends.html) (organization
 
 * GDB
   * [rust-gdb](https://github.com/rust-lang/rust/blob/master/src/etc/rust-gdb)
+  * [gdbgui](https://github.com/cs01/gdbgui) — Browser based frontend for gdb to debug C, C++, Rust, and go. [<img src="https://travis-ci.org/cs01/gdbgui.svg?branch=master">](https://travis-ci.org/cs01/gdbgui)
 * LLDB
   * [lldb_batchmode.py](https://github.com/rust-lang/rust/blob/master/src/etc/lldb_batchmode.py) — allows to use LLDB in a way similar to GDB's batch mode.
   * [CodeLLDB](https://marketplace.visualstudio.com/items?itemName=vadimcn.vscode-lldb) — a LLDB extension for [Visual Studio Code](https://code.visualstudio.com/).