update summary

src/SUMMARY.md

@@ -7,10 +7,7 @@
 
 - [Setting Up Your Environment](1-setting-up-your-environment.md)
 - [Basics of Bend](2-basics-of-bend.md)
-<!-- - [Functions in Bend](3-functions-in-bend.md)
-- [Advanced Functions](4-advanced-functions.md)
-- [Data Structures](5-data-structures.md)
-- [Pattern Matching](6-pattern-matching.md)
-- [Parallelism in Bend](7-parallelism-in-bend.md)
-- [Error Handling](8-error-handling.md)
-- [Memory Management](9-memory-management.md) -->
+
+-----------
+
+[Contributors](misc/contributors.md)