diff --git a/docs b/docs
index 6e17cad..f4e4a67 160000
--- a/docs
+++ b/docs
@@ -1 +1 @@
-Subproject commit 6e17cadb9d79143c4e41ababeb309d4e88f9038b
+Subproject commit f4e4a67ac24cf12b3c0b6e5aae0dbb2f3497bb73
diff --git a/sphinx/conf.py b/sphinx/conf.py
index 94c5592..c03f0cc 100644
--- a/sphinx/conf.py
+++ b/sphinx/conf.py
@@ -44,9 +44,9 @@ author = 'Ruben Verweij'
 # built documents.
 #
 # The short X.Y version.
-version = ''
+version = '3.0.0'
 # The full version, including alpha/beta/rc tags.
-release = ''
+release = '3.0.0'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/sphinx/nd2reader.rst b/sphinx/nd2reader.rst
index 668ad6e..c0b2722 100644
--- a/sphinx/nd2reader.rst
+++ b/sphinx/nd2reader.rst
@@ -55,7 +55,7 @@ nd2reader.exceptions module
     :undoc-members:
     :show-inheritance:
 
-nd2reader.exceptions artificial
+nd2reader.artificial module
 -------------------------------
 
 .. automodule:: nd2reader.artificial
diff --git a/sphinx/tutorial.md b/sphinx/tutorial.md
index 60fb2d1..7b69627 100644
--- a/sphinx/tutorial.md
+++ b/sphinx/tutorial.md
@@ -23,4 +23,35 @@ with ND2Reader('my_directory/example.nd2') as images:
   plt.imshow(images[0])
 ```
 
-After opening the file, all `pims` features are supported. Please refer to the [pims documentation](http://soft-matter.github.io/pims/).
\ No newline at end of file
+After opening the file, all `pims` features are supported. Please refer to the [pims documentation](http://soft-matter.github.io/pims/).
+
+### ND2 metadata
+
+The ND2 file contains various metadata, such as acquisition information,
+regions of interest and custom user comments. Most of this metadata is parsed
+and available in dictionary form. For example:
+
+```python
+from nd2reader import ND2Reader
+
+with ND2Reader('my_directory/example.nd2') as images:
+    # width and height of the image
+    print('%d x %d px' % (images.metadata['width'], images.metadata['height']))
+
+```
+
+All metadata properties are:
+
+* `width`: the width of the image in pixels
+* `height`: the height of the image in pixels
+* `date`: the date the image was taken 
+* `fields_of_view`: the fields of view in the image
+* `frames`: a list of all frame numbers
+* `z_levels`: the z levels in the image
+* `total_images_per_channel`: the number of images per color channel
+* `channels`: the color channels
+* `pixel_microns`: the amount of microns per pixel
+* `rois`: the regions of interest (ROIs) defined by the user
+* `experiment`: information about the nature and timings of the ND experiment
+
+