New member added in readme section.

README.md

@@ -87,3 +87,4 @@ Vatsla Adhiakri <br/>
 Sana Shah <br/>
 Archit Gupta <br/>
 Samrat Khan <br/>
+Pranjal <br/>

c codes/Print_a_poem.c

@@ -0,0 +1,9 @@
+#include<stdio.h> 
+int main(void) 
+{     
+printf("Roses are red\n");     
+printf("violets are blue\n");     
+printf("sugar is sweet\n");     
+printf("and so are you\n");     
+return 0; 
+}

c codes/Sine_value_calculator.c

@@ -0,0 +1,11 @@
+#include<stdio.h> 
+#include<math.h> 
+int main(void) 
+{     
+double sinValue,X;     
+printf("please enter the value of calculate sine:");  
+scanf("%lf",&X);     
+sinValue=sin(X);     
+printf("\n The sine value of %lf=%lf",X,sinValue);     
+return 0; 
+}

c codes/Volume_calculator.c

@@ -0,0 +1,9 @@
+#include<stdio.h> 
+#define PI 3.14159 
+int main(void) 
+{ 
+int radius; printf("Enter radius:"); 
+scanf("%d", &radius);
+printf("volume is : %lf \n\n", 4 *radius*radius*radius/3 ); 
+return 0; 
+}