Update README.md

Author: syamkakarla98

README.md

@@ -61,14 +61,14 @@ https://github.com/syamkakarla98/Dimensionality-reduction-and-classification-on-
 
    ![indian_pines_classification_before_pca](https://user-images.githubusercontent.com/36328597/41496231-d2ddac0e-7157-11e8-9c14-29e89685569c.JPG)
 
-      * Then the classification accuracy of indian pines dataset before **pca** is:
+      * Then the classification accuracy of indian pines dataset before **PCA** is:
 
    ![indian_pines_accuracy_before_pca](https://user-images.githubusercontent.com/36328597/41495844-97a3e31e-714e-11e8-8d63-4d786317b239.JPG)    
 
 3. The result of the [indian_pines_knnc_after_pca.py](
 https://github.com/syamkakarla98/Dimensionality-reduction-and-classification-on-Hyperspectral-Images-Using-Python/blob/master/Indian_pines_knnc_after_pca.py)
 
-   * Then the resultant classification accuracy of indian pines dataset after **pca** is:
+   * Then the resultant classification accuracy of indian pines dataset after **PCA** is:
 
       ![indian_pines_accuracy_after_pca](https://user-images.githubusercontent.com/36328597/41495843-9753df04-714e-11e8-9540-0968bdb27a7f.JPG)