Update README.md

Author: ehsanwwe

README.md

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 <h1>Unity SoftBody physics</h1>
-<h3>Add a realestic MeshBased softbody physics feature to unity by adding one script</h3>
-
+Add a realestic MeshBased softbody physics feature to unity by adding one script
 
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 <h2>To do </h2>
-#add seperated physics For Fabric and Jelly mode
-<br>
 ✔️  # Add a center structure to create a jelly mode in unity softbody physics
 <br>
-✔️ # Add bake Button in editor to store mesh data into a temp folder under <b>streamingasset</b> to solving <b>"reCreating mesh in each of plays"</b>
+📝 # Add bake Button in editor to store mesh data into a temp folder under <b>streamingasset</b> to solving <b>"reCreating mesh in each of plays"</b>
+<br>
+📝 #add seperated physics For Fabric and Jelly mode
+<br>
+📝 #add convexhull system to optimize Softbody system