update bin in package.json

Author: daria-z

package.json

@@ -9,7 +9,12 @@
   },
   "bin": {
     "brain-games": "bin/brain-games.js",
-    "brain-even": "bin/brain-even.js"
+    "brain-even": "bin/brain-even.js",
+    "brain-calc": "bin/brain-calc.js",
+    "brain-gcd": "bin/brain-gcd.js",
+    "brain-prime": "bin/brain-prime.js",
+    "brain-progression": "bin/brain-progression.js"
+
   },
   "author": "",
   "license": "ISC",