Challenge -18 : Created gist md file and added 2 gist links

iamrahul8 · iamrahul8 · commit 6351d8bad14e · 2022-09-18T17:15:04.000+05:30
Signed-off-by: Rahul Kumar &lt;rkgkumar072@gmail.com&gt;
diff --git a/contributors/iamrahul8/gist-solutions.md b/contributors/iamrahul8/gist-solutions.md
@@ -0,0 +1,7 @@
+# Challenge 18
+
+Software development related topic  - Database :  Amazon Web Services
+Gist link - https://gist.github.com/iamrahul8/cb81fc0b92db532dc0bf563ba7cfdb12
+
+Code Snippet - C++ Program to Check Whether a Number is Prime or Not
+Gist link - https://gist.github.com/iamrahul8/abdce30ba228552fbd5fee1bc69279e2
