Update README.md

Signed-off-by: Fabiana 🚀  Campanari <[email protected]>

Author: FabianaCampanari

README.md

@@ -282,7 +282,10 @@ Ramanujan's deep insights into infinite series and modular forms continue to inf
 
 #
 
-### 7. [Albert Einstein]() (1905)  <br> ──────────────  
+7. **Albert Einstein (1905)**  <br>  
+──────────────  
+
+   * **Explanation of the Photoelectric Effect**: Introduced the concept of photons, explaining that light consists of discrete energy packets. ([byjus.com](https://byjus.com/physics/einsteins-explaination/?utm_source=chatgpt.com))
 
    * **Photoelectric Effect Formula**:  
      $\huge \color{DeepSkyBlue} E_{\text{photon}} = h \cdot f = W + K$
@@ -294,6 +297,7 @@ Ramanujan's deep insights into infinite series and modular forms continue to inf
      - **\( W \)**: Work function (the minimum energy required to remove an electron from the material).
      - **\( K \)**: Kinetic energy of the ejected electron.
 
+   Einstein's explanation of the photoelectric effect provided crucial evidence for the quantization of light and earned him the Nobel Prize in Physics in 1921. ([phys.libretexts.org](https://phys.libretexts.org/Bookshelves/University_Physics/University_Physics_%28OpenStax%29/University_Physics_III_-_Optics_and_Modern_Physics_%28OpenStax%29/06%3A_Photons_and_Matter_Waves/6.03%3A_Photoelectric_Effect?utm_source=chatgpt.com))