diff --git a/README.md b/README.md
index 2e670a1..2a1e74e 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,51 @@
-# Best-Learning-Chemistry
\ No newline at end of file
+# Best-Learning-Chemistry
+ This app .........
+ # This Link Release App Android :
+  <>
+ # Example Code JSON File : 
+   {
+      "name": "Lithium",
+      "appearance": "silvery-white",
+      "atomic_mass": 6.94,
+      "boil": 1603,
+      "category": "alkali metal",
+      "density": 0.534,
+      "discovered_by": "Johan August Arfwedson",
+      "melt": 453.65,
+      "molar_heat": 24.86,
+      "named_by": null,
+      "number": 3,
+      "period": 2,
+      "group": 1,
+      "phase": "Solid",
+      "source": "https://en.wikipedia.org/wiki/Lithium",
+      "bohr_model_image": "https://storage.googleapis.com/search-ar-edu/periodic-table/element_003_lithium/element_003_lithium_srp_th.png",
+      "bohr_model_3d": "https://storage.googleapis.com/search-ar-edu/periodic-table/element_003_lithium/element_003_lithium.glb",
+      "spectral_img": null,
+      "summary": "Lithium (from Greek:λίθος lithos, \"stone\") is a chemical element with the symbol Li and atomic number 3. It is a soft, silver-white metal belonging to the alkali metal group of chemical elements. Under standard conditions it is the lightest metal and the least dense solid element.",
+      "symbol": "Li",
+      "xpos": 1,
+      "ypos": 2,
+      "wxpos": 1,
+      "wypos": 2,
+      "shells": [
+        2,
+        1
+      ],
+      "electron_configuration": "1s2 2s1",
+      "electron_configuration_semantic": "[He] 2s1",
+      "electron_affinity": 59.6326,
+      "electronegativity_pauling": 0.98,
+      "ionization_energies": [
+        520.2,
+        7298.1,
+        11815
+      ],
+      "cpk-hex": "cc80ff",
+      "image": {
+        "title": "0.5 Grams Lithium under Argon. Original size of the largest piece in cm: 0.3 x 4",
+        "url": "https://upload.wikimedia.org/wikipedia/commons/e/e2/0.5_grams_lithium_under_argon.jpg",
+        "attribution": "Hi-Res Images ofChemical Elements, CC BY 3.0 <https://creativecommons.org/licenses/by/3.0>, via Wikimedia Commons, source: https://images-of-elements.com/lithium.php"
+      },
+      "block": "s"
+    },