Update and rename even fibonacci series sum

Even Fibonacci numbers sum.c

@@ -0,0 +1,29 @@
+/* Program to calculate sum of even fibonacci series numbers upto a limit (entered by user)
+ * fibonacci series for limit 13:
+ *                      1 1 2 3 5 8
+ * even sum = 2 + 8 = 10
+ * */
+
+#include <stdio.h>
+int main() {
+    int first=1, next=1, sum, limit;    
+    int evensum = 0;
+
+    printf("Enter Limit: ");  
+    scanf("%d",&limit);
+
+    while(true) {
+        //logic for generating fibonacci series
+        sum = first + next;
+        first = next;
+        next = sum;
+
+        if(sum >= limit)
+            break;
+
+        if(sum%2==0)
+            evensum += sum;
+    }
+    printf("Even sum = %d \n",evensum);
+    return 0;
+}