Feat: exercise template

nvim/.config/nvim/vsnips/tex.json

@@ -81,5 +81,15 @@
             "\\\\end{multicols}"
         ],
         "description": "multicols"
+    },
+    "exercise": {
+        "prefix": "exercise",
+        "body": [
+            "\\\\begin{exercise}[subtitle={${1:subtitle}}, step={${2:1}}, origin={${3:Création}}, topics={${4:chapitre}}, tags={${5:tags}}, mode={${5:groupe}}]", 
+            "\t$0",
+            "\\\\end{exercise}"
+        ],
+        "description": "exercise xsim"
+
     }
 }