diff --git a/Download_data b/Download_data
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+++ b/Download_data
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+TELECHARGER DONNEES HST
+https://archive.stsci.edu/hst/search.php
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diff --git a/plots/M87/POS1/animated_loop/make_gif b/plots/M87/POS1/animated_loop/make_gif
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index 0000000..32cee3e
--- /dev/null
+++ b/plots/M87/POS1/animated_loop/make_gif
@@ -0,0 +1,2 @@
+convert -delay 20 -loop 0 *.jpg myimage.gif
+
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diff --git a/update_git b/update_git
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index 0000000..7b3950d
--- /dev/null
+++ b/update_git
@@ -0,0 +1,14 @@
+RECUPERER NOUVELLE VERSION
+git fetch
+
+INSTALLER NOUVELLE VERSION
+git pull origin main
+
+AJOUTER TOUS LES FICHIERS A L'ARBRE DE DIFFERENTIATION DU GIT
+git add .
+
+PRENDRE TOUS LES FICHIERS DE L'ARBRE COURANT POUR EN FAIRE UNE VERSION
+git commit -m "mesage du commit"
+
+ENVOYER MES COMMITS LOCAUX AU DOSSIER PARTAGE DISTANT
+git push -u origin main