Add CLA and change contributing to reflect CLA (triton-inference-serv…

…er#1320)

* Add CLA and change contributing to reflect CLA

* actually commit the CONTRIBUTING.md changes

* Updates

Co-authored-by: David Goodwin <[email protected]>

CONTRIBUTING.md

@@ -66,64 +66,14 @@
 
 - Make sure that you can contribute your work to open source (no
   license and/or patent conflict is introduced by your code). You need
-  to [`sign`](#Sign) your commit.
+  to complete the CLA described below before your PR can be merged.
 
 - Thanks in advance for your patience as we review your contributions;
   we do appreciate them!
 
-<a name="Sign"></a>Sign Your Work
---------------
+# Contributor License Agreement (CLA)
 
-We require that all contributors "sign-off" on their commits. This
-certifies that the contribution is your original work, or you have
-rights to submit it under the same license, or a compatible license.
-
-Any contribution which contains commits that are not Signed-Off will
-not be accepted.
-
-To sign off on a commit you simply use the `--signoff` (or `-s`)
-option when committing your changes:
-
-    $ git commit -s -m "Add cool feature."
-
-This will append the following to your commit message:
-
-    Signed-off-by: Your Name <[email protected]>
-
-By doing this you certify the below:
-
-    Developer Certificate of Origin
-    Version 1.1
-
-    Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
-    1 Letterman Drive
-    Suite D4700
-    San Francisco, CA, 94129
-
-    Everyone is permitted to copy and distribute verbatim copies of
-    this license document, but changing it is not allowed.
-
-
-    Developer's Certificate of Origin 1.1
-
-    By making a contribution to this project, I certify that:
-
-    (a) The contribution was created in whole or in part by me and I
-    have the right to submit it under the open source license
-    indicated in the file; or
-
-    (b) The contribution is based upon previous work that, to the best
-    of my knowledge, is covered under an appropriate open source
-    license and I have the right under that license to submit that
-    work with modifications, whether created in whole or in part by
-    me, under the same open source license (unless I am permitted to
-    submit under a different license), as indicated in the file; or
-
-    (c) The contribution was provided directly to me by some other
-    person who certified (a), (b) or (c) and I have not modified it.
-
-    (d) I understand and agree that this project and the contribution
-    are public and that a record of the contribution (including all
-    personal information I submit with it, including my sign-off) is
-    maintained indefinitely and may be redistributed consistent with
-    this project or the open source license(s) involved.
+Triton requires that all contributors (or their corporate entity) send
+a signed copy of the [Contributor License
+Agreement](https://github.com/NVIDIA/triton-inference-server/blob/master/Triton-CCLA-v1.pdf)
+to [email protected].