[gimp-web] Adding 2 screenshots to GIMP 2.99.6 news.

[Jehan <jehanp src gnome org>]

commit bfcd65073fb07adc3d2f49be6f7eb1cf0038acc0
Author: Jehan <jehan girinstud io>
Date:   Fri May 7 18:45:26 2021 +0200

    Adding 2 screenshots to GIMP 2.99.6 news.

 .../gimp-2.99.6-off-canvas-guides.png                  | Bin 0 -> 346509 bytes
 .../gimp-2.99.6-template-selector-canvas-size.png      | Bin 0 -> 121035 bytes
 .../news/2021/2021-04_GIMP-2.99.6_Released/index.md    |   4 ++--
 3 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/content/news/2021/2021-04_GIMP-2.99.6_Released/gimp-2.99.6-off-canvas-guides.png 
b/content/news/2021/2021-04_GIMP-2.99.6_Released/gimp-2.99.6-off-canvas-guides.png
new file mode 100644
index 00000000..4785dc1c
Binary files /dev/null and b/content/news/2021/2021-04_GIMP-2.99.6_Released/gimp-2.99.6-off-canvas-guides.png 
differ
diff --git a/content/news/2021/2021-04_GIMP-2.99.6_Released/gimp-2.99.6-template-selector-canvas-size.png 
b/content/news/2021/2021-04_GIMP-2.99.6_Released/gimp-2.99.6-template-selector-canvas-size.png
new file mode 100644
index 00000000..7950aa22
Binary files /dev/null and 
b/content/news/2021/2021-04_GIMP-2.99.6_Released/gimp-2.99.6-template-selector-canvas-size.png differ
diff --git a/content/news/2021/2021-04_GIMP-2.99.6_Released/index.md 
b/content/news/2021/2021-04_GIMP-2.99.6_Released/index.md
index 9e74d72b..f7e76d38 100644
--- a/content/news/2021/2021-04_GIMP-2.99.6_Released/index.md
+++ b/content/news/2021/2021-04_GIMP-2.99.6_Released/index.md
@@ -50,7 +50,7 @@ dropping the guides off-viewport, which turns out to not be so different
 after experimenting with this change in production for a few months.
 
 <figure>
-<img src="{attach}gimp-2.99.6-off-canvas-guides.gif" alt="Off-canvas guides - GIMP 2.99.6"/>
+<img src="{attach}gimp-2.99.6-off-canvas-guides.png" alt="Off-canvas guides - GIMP 2.99.6"/>
 <figcaption>
 <em>Off-canvas guides - GIMP 2.99.6</em>
 </figcaption>
@@ -64,7 +64,7 @@ contributor Stanislav Grinkov implemented a template selector
 in the Canvas Size dialog.
 
 <figure>
-<img src="{attach}gimp-2.99.6-template-selector-canvas-size.gif" alt="Template selector in Canvas Size 
dialog - GIMP 2.99.6"/>
+<img src="{attach}gimp-2.99.6-template-selector-canvas-size.png" alt="Template selector in Canvas Size 
dialog - GIMP 2.99.6"/>
 <figcaption>
 <em>Template selector in Canvas Size dialog - GIMP 2.99.6</em>
 </figcaption>