Change README to markdown format.

Add translation status overview.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>

README.md

@@ -1,6 +1,6 @@
 
  tdesudo - a sudo frontend for TDE
- 
+
 
 Tdesudo is a graphical front end for the "sudo" command for the Trinity
 Desktop Environment.
@@ -9,14 +9,16 @@ It allows you to run a program as different user if the system
 administrator allows it.
 
 
-- Basic usage:
+# Basic usage:
+
 Just type "tdesudo <command>" to run <command> as root user.
 Optionally you can type "tdesudo -u <runas> <command>" and <command>
 will be executed as user <runas>
 
+.
 
- CONTRIBUTING
-==============
+Contributing
+--------------
 
 If you wish to contribute to tdesudo (TDE), you might do so:
 
@@ -25,3 +27,11 @@ If you wish to contribute to tdesudo (TDE), you might do so:
 
 - TDE Weblate Translation Workspace (TWTW) collaboration tool.
   https://mirror.git.trinitydesktop.org/weblate
+
+
+Translations status
+---------------------
+
+### messages
+[![Translations status](https://mirror.git.trinitydesktop.org/weblate/widgets/applications/-/tdesudo/multi-auto.svg
+"Engage in translating")](https://mirror.git.trinitydesktop.org/weblate/projects/applications/tdesudo/)