Update README.md with information about image resize

Author: cbos

README.md

@@ -6,3 +6,19 @@ Github page for my account hosted at https://ceesbos.nl
 ```shell
 git clone --recurse-submodules --depth 1 [email protected]:cbos/cbos.github.io.git
 ```
+
+
+# Image resize with ImageMagick
+
+Documentation about convert: https://imagemagick.org/script/convert.php
+
+```shell
+
+# https://imagemagick.org/script/convert.php
+#Resize
+magick convert image.png -resize 1200 image_resized.png
+magick convert image.png -resize 50% image_resized.png
+
+# Rotate
+magick convert unconference2.jpg -distort SRT -90  unconf_rotate.jpg
+```