[doc] Documentation work for the 0.4 release (not finished).

bonobo/examples/tutorials/tut01e01.py

@@ -0,0 +1,23 @@
+import bonobo
+
+
+def extract():
+    yield 'foo'
+    yield 'bar'
+    yield 'baz'
+
+
+def transform(x):
+    return x.upper()
+
+
+def load(x):
+    print(x)
+
+
+graph = bonobo.Graph(extract, transform, load)
+
+graph.__doc__ = 'hello'
+
+if __name__ == '__main__':
+    bonobo.run(graph)

bonobo/examples/tutorials/tut01e02.py

@@ -0,0 +1,10 @@
+import bonobo
+
+graph = bonobo.Graph(
+    ['foo', 'bar', 'baz', ],
+    str.upper,
+    print,
+)
+
+if __name__ == '__main__':
+    bonobo.run(graph)