README: added frog demo gif

README.md

@@ -110,9 +110,13 @@ Contents of this distribution:
 
 Run ``frog --help`` for basic usage instructions.
 
+## Demo
+
+![Frog Demo](https://raw.githubusercontent.com/CLARIAH/wp3-demos/master/frog.gif)
+
 ## Documentation
 
-The Frog documentation can be found on https://frognlp.readthedocs.io
+The Frog documentation can be found on <https://frognlp.readthedocs.io>
 
 ## Container Usage
 
@@ -137,11 +141,11 @@ Add the ``-v /path/to/your/data:/data`` parameter if you want to mount your data
 
 ## Python Binding
 
-If you are looking to use Frog from Python, please see https://github.com/proycon/python-frog instead for the python binding. It is not included in this repository.
+If you are looking to use Frog from Python, please see <https://github.com/proycon/python-frog> instead for the python binding. It is not included in this repository.
 
 ## Webservice
 
-If you are looking to run Frog as a webservice yourself,  please see https://github.com/proycon/frog_webservice . It is not included in this repository.
+If you are looking to run Frog as a webservice yourself,  please see <https://github.com/proycon/frog_webservice> . It is not included in this repository.
 
 ## Credits