Update gist-solutions.md

Signed-off-by: cy20001yadav <cy20001yadav@gmail.com>

Author: cy2000yadav

contributors/cy2000yadav/gist-solutions.md

@@ -1,4 +1,4 @@
-## Challange 18 - gist solution
+# Challange 18 - gist task
 
-- [File handling in c](https://gist.github.com/cy2000yadav/606114650789ec80be2a949053cd8978)
-- [Example on file handling in c](https://gist.github.com/cy2000yadav/2420e7475e4bff7377941e4ffe995f49)
+- File handling : [File handling in c](https://gist.github.com/cy2000yadav/606114650789ec80be2a949053cd8978)
+- Example of File handling : [Example on file handling in c](https://gist.github.com/cy2000yadav/2420e7475e4bff7377941e4ffe995f49)