[docs] rewriting the tutorial.

requirements-jupyter.txt

@@ -1,7 +1,7 @@
 -e .[jupyter]
 appnope==0.1.0
 bleach==2.1.2
-decorator==4.1.2
+decorator==4.2.1
 entrypoints==0.2.3
 html5lib==1.0.1
 ipykernel==4.7.0
@@ -19,7 +19,7 @@ markupsafe==1.0
 mistune==0.8.3
 nbconvert==5.3.1
 nbformat==4.4.0
-notebook==5.2.2
+notebook==5.3.0rc1
 pandocfilters==1.4.2
 parso==0.1.1
 pexpect==4.3.1
@@ -28,13 +28,14 @@ prompt-toolkit==1.0.15
 ptyprocess==0.5.2
 pygments==2.2.0
 python-dateutil==2.6.1
-pyzmq==16.0.3
+pyzmq==17.0.0b3
 qtconsole==4.3.1
+send2trash==1.4.2
 simplegeneric==0.8.1
 six==1.11.0
 terminado==0.8.1
 testpath==0.3.1
-tornado==4.5.3
+tornado==5.0a1
 traitlets==4.3.2
 wcwidth==0.1.7
 webencodings==0.5.1