sign in part done

1-gui/README.md

@@ -22,8 +22,17 @@ The web interface is available at [https://cloud.muni.cz](https://cloud.muni.cz)
 To sign in,
 * select `ENIFRA CESNET`,
 * click on `Sign In`,
+{% reveal text="Show Screenshot" %}
+  ![](/1-gui/sign_in1.png)
+{% endreveal %}
 * select your institution from the drop-down list (use the search box at the top as a filter),
+{% reveal text="Show Screenshot" %}
+  ![](/1-gui/sign_in2.png)
+{% endreveal %}
 * provide your institution-specific sign-in credentials,
+{% reveal text="Show Screenshot" %}
+  ![](/1-gui/sign_in3.png)
+{% endreveal %}
 * wait to be redirected back to our web interface.
 
 ## Create Key Pair