Add GraphShell.md

Author: Jegors Čemisovs

.idea/gradle.xml

@@ -0,0 +1,9 @@
+---
+layout: post title: Sample application: Graph Shell
+---
+
+## About
+
+To demonstrate the work of search algorithms, I made a small console program. The program allows you to select one of
+three graph samples and search for a path using two algorithms.
+

docs/GraphShell.md

@@ -60,6 +60,13 @@ public double distance(List<String> path) {
         return graph.getDistance(path);
     }
 
+    /**
+     * Implementation of java bean verification for @Vertex annotation
+     *
+     * @param value   to check
+     * @param context of validation
+     * @return is value existing vertex in the graph scheme
+     */
     @Override
     public boolean isValid(String value, ConstraintValidatorContext context) {
         return graph.schema().containsKey(value);

sample-cli/build.gradle renamed to graph-shell/build.gradle

@@ -1,2 +1,2 @@
 rootProject.name = 'algorithms'
-include 'algorithm', 'sample-java', 'sample-groovy', 'sample-cli'
+include 'algorithm', 'sample-java', 'sample-groovy', 'graph-shell'