[gimp-web/testing] 2.10.16: move all contributors to a separate section and mention more of them

[Alexandre Prokoudine <aprokoudine src gnome org>]

commit 53af146c9b464d09c8673897c6d37dbb2c0c9e75
Author: Alexandre Prokoudine <alexandre prokoudine gmail com>
Date:   Wed Feb 19 17:08:34 2020 +0300

    2.10.16: move all contributors to a separate section and mention more of them

 .../2020/2020-02_GIMP-2.10.16_Released/index.md    | 45 ++++++++++------------
 1 file changed, 21 insertions(+), 24 deletions(-)
---
diff --git a/content/news/2020/2020-02_GIMP-2.10.16_Released/index.md 
b/content/news/2020/2020-02_GIMP-2.10.16_Released/index.md
index 458cfae2..9c1e460b 100644
--- a/content/news/2020/2020-02_GIMP-2.10.16_Released/index.md
+++ b/content/news/2020/2020-02_GIMP-2.10.16_Released/index.md
@@ -47,8 +47,6 @@ _Interface/Toolbox_ page of the _Preferences_ dialog.
 Please note that the default order of tools in the toolbox is now different.
 You can customize it as well. 
 
-This new feature was introduced by Ell.
-
 # Compact sliders
 
 Sliders typically used in GEGL-based filters and tools' options now have
@@ -75,8 +73,6 @@ Here is the full reference:
 alt="New interaction model for the slider widget"/>
 </figure>
 
-The new compact style was contributed by Ell.
-
 # Transformation preview improvements
 
 A new option called _Composited Preview_ is now available for most
@@ -92,7 +88,7 @@ Your browser does not support the video tag.
 </video>
 </div>
 
-It comes with two suboptions.
+It comes with two sub-options.
 
 _Preview linked items_ enables previewing changes to all linked items
 like layers rather than just the currently selected item.
@@ -113,8 +109,6 @@ which is usually not the case with large layers.
 GIMP now also automatically previews the clipping of transformed layers.
 This allows reducing the amount of trial and error when e.g. rotating. 
 
-All these changes were contributed by Ell.
-
 # Docking UX improvements
 
 The 'You can drop dockable dialogs here' message is now gone from the
@@ -132,8 +126,6 @@ Your browser does not support the video tag.
 </video>
 </div>
 
-The change was contributed by Ell.
-
 # New 3D Transform tool
 
 A new transform tool helps changing the perspective of a layer or panning
@@ -155,8 +147,6 @@ settings dialog. Finally, the _Local frame_ option allows controlling the
 transformation in the layer's local frame of reference, instead of the global
 one.
 
-The new tool was contributed by Ell.
-
 # Brush outline and quality improvements
 
 The brush outline motion now feels smoother thanks to raising the refresh
@@ -191,8 +181,6 @@ closest mipmap level as the resampling source for downscaled brushes. This
 significantly reduces aliasing in downscaled brushes, producing smoother
 results.
 
-All changes here were contributed by Ell.
-
 # Symmetry painting enhancements
 
 The _Mandala_ symmetry painting mode now has a _Kaleidoscope_ option, which
@@ -209,8 +197,6 @@ Your browser does not support the video tag.
 When the _Kaleidoscope_ option is enabled, subsequent strokes are mirrored
 across the symmetry slice edges.
 
-The feature was contributed by Elad Shahar.
-
 # Faster loading of ABR brushes
 
 GIMP now spends a lot less time loading Photoshop's brushes (ABR).
@@ -220,8 +206,6 @@ smaller, by order of a magnitude.
 The technical explanation is that GIMP used to read the stream of ABR
 data byte by byte, and now it uses scanline reading instead.
 
-The fix was contributed by Ell.
-
 # Layers dock improvements
 
 The _Layers_ dialog finally consolidates the UI for merging layers and
@@ -237,8 +221,6 @@ You can also use several modifiers:
 - __Ctrl__ will merge all visible layers
 - __Ctrl + Shift__ will merge all visible layers with last used values
 
-This feature was contributed by woob.
-
 # Update check to notify users of new releases available
 
 GIMP will now check every time on the start up if the version of GIMP
@@ -261,8 +243,6 @@ _About_ dialog.
 It is also possible to build GIMP without this feature by passing the
 `--disable-check-update` argument to the configure script.
 
-Updates checking was contributed by Jehan Pagès.
-
 # Continuous Integration
 
 Work on our continuous integration goes forward. We now implemented
@@ -309,6 +289,21 @@ input abyss.
 The babl library got build fixes, improved host CPU detection,
 macOS-specific fixes, and Clang warning squelches.
 
+# Contributors
+
+Code contributors to this release are: Alex Samorukov, Anders Jonsson,
+band-a-prend, Cyril Richard, Elad Shahar, Ell, Elle Stone, Félix Piédallu,
+Jehan Pagès, Jernej Simončič, lillolollo, Massimo Valentini, Michael
+Natterer, Nikc, Øyvind Kolås, Pascal Terjan, woob.
+
+Translators: Alan Mortensen, Alexandre Prokoudine, Anders Jonsson, Balázs
+Meskó, Balázs Úr, Bruce Cowan, Daniel Korostil, Jordi Mas, Julien Hardelin,
+Marco Ciampa, Piotr Drąg, Rodrigo Lledó Milanca, Ryuta Fujii,
+Sabri Ünal, sicklylife, Sveinn í Felli, Tim Sabsch, Zander Brown.
+
+As usual, we thank lillolollo, nmat, and Michael Schumacher for triaging
+bug reports, and Julien Hardelin for keeping the user manual up to date.
+
 # What's next
 
 Our main objective is still completing the GTK3 port and releasing GIMP 3.0.
@@ -319,9 +314,11 @@ single-window layout and introducing named workspaces streamlined
 for common use cases such as general editing, web design, digital
 photography, painting etc.
 
-If you customized your default GIMP layout, feel free to post a screenshot
-and explain the reason for your changes and your use cases. You can do that
-either on Twitter or in the mailing list for users.
+If you customized your default GIMP layout, we encourage you to post
+a screenshot and tell us about your use cases for GIMP that affected this
+customization. You can do that either
+[on Twitter](https://twitter.com/GIMP_Official) or in the mailing list
+for users.
 
 Once we have a representative amount of samples for each common use case,
 we will analyze the data and see if we can create default workspaces that