[MINOR] feat(doc): Update MAINTAINERS.md to list contribitors as well (…

…#3356)

### What changes were proposed in this pull request?

Add table to list contributors

### Why are the changes needed?

To make it easier to donate code to the ASF.

Fix: # N/A

### Does this PR introduce _any_ user-facing change?

No.

### How was this patch tested?

N/A

MAINTAINERS.md

@@ -3,9 +3,11 @@
   This software is licensed under the Apache License version 2.
 -->
 
+This document lists the maintainers and contribitors of the Project.
+
 # Maintainers
 
-This document lists the maintainers of the Project. Maintainers may be added once approved by the existing maintainers (see [Governance document](GOVERNANCE.md)). By adding your name to this list you agree to follow the project's guidelines and governance including the [Code of Conduct](CODE-OF-CONDUCT.md) and that you have permission to contribute from your employer. All contributions are licensed under the Apache License version 2.
+Maintainers may be added once approved by the existing maintainers (see [Governance document](GOVERNANCE.md)). By adding your name to this list you agree to follow the project's guidelines and governance including the [Code of Conduct](CODE-OF-CONDUCT.md) and that you have permission to contribute from your employer. All contributions are licensed under the Apache License version 2.
 
 | **NAME**      | **GitHub Username** | **Organization** |
 |---------------|---------------------|------------------|
@@ -20,6 +22,15 @@ This document lists the maintainers of the Project. Maintainers may be added onc
 | Cheyne        | ch3yne              | Datastrato       |
 | Jerry Shao    | jerryshao           | Datastrato       |
 
+
+# Contribitors
+
+Contribitors may be added by existing maintainers (see [Governance document](GOVERNANCE.md)). By adding your name to this list you agree to follow the project's guidelines and governance including the [Code of Conduct](CODE-OF-CONDUCT.md) and that you have permission to contribute from your employer. All contributions are licensed under the Apache License version 2.
+
+| **NAME**      | **GitHub Username** | **Organization** |
+|---------------|---------------------|------------------|
+|               |                     |                  |
+
 ## Review process
 
 All contributions to the project must be reviewed by **AT LEAST** one maintainer before merging.