Added script

.gitignore

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+public
+!.gitkeep
+cwebp

install.sh

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+wget https://storage.googleapis.com/downloads.webmproject.org/releases/webp/libwebp-1.2.2-rc1-linux-x86-64.tar.gz
+tar -xf *.tar.gz
+mv libwebp-*/bin/cwebp .
+rm -r libwebp-*

run_prepareimg.sh

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+mkdir public
+mkdir public/small
+mkdir public/medium
+mkdir public/large
+
+
+
+echo "Working on large images"
+
+for f in ../strapi.accords-library.com/public/uploads/*; do
+    filename=$(basename "$f")
+    ./cwebp -short -m 6 -q 80 -alpha_q 80 -mt -resize 0 2048 $f -o public/large/${filename%.*}.webp
+done