Added contributing file

CONTRIBUTING.md

+## Contributing to MOSSCO
+
+1. If you would like to contribute to MOSSCO, you will have to sign a Contributor
+  License Agreement (CLA).  This CLA *allows you* to retain your copyright while
+  at the same time it *allows us* to license MOSSCO under approved open source
+  licenses without consulting you every time.
+
+2. Indiduals please sign the MOSSCO Individual CLA, to be found in the local file
+  `./doc/license/MOSSCO_contributor_license_agreement_individual.pdf` or online
+  <https://sf.net/p/mossco/code/ci/master/tree/doc/license/MOSSCO_contributor_license_agreement_individual.pdf>.
+
+3. Entities please sign the MOSSCO Entity CLA, to be found in the local file
+  `./doc/license/MOSSCO_contributor_license_agreement_entity.pdf` or online
+  <https://sf.net/p/mossco/code/ci/master/tree/doc/license/MOSSCO_contributor_license_agreement_entity.pdf>.
+
+> If you do not own the copyright in the entire work of authorship, we can only
+accept your contribution provided that the parts that you do not own copyright
+of (1) are clearly marked, and (2) are released under an OSI or FSF-approved
+open software license, (3) and the original copyright statement and the names
+of all authors are retained.

LICENSE.md

@@ -13,23 +13,4 @@ under the Creative Commons Attribution Share Alike CC-BY-SA version 4.0.
 3. Any code within MOSSCO obtained from third parties is licensed under the
   respective license of the originator.
 
-## Contributing to MOSSCO
 
-1. If you would like to contribute to MOSSCO, you will have to sign a Contributor
-  License Agreement (CLA).  This CLA *allows you* to retain your copyright while
-  at the same time it *allows us* to license MOSSCO under approved open source
-  licenses without consulting you every time.
-
-2. Indiduals please sign the MOSSCO Individual CLA, to be found in the local file
-  `./doc/license/MOSSCO_contributor_license_agreement_individual.pdf` or online
-  <https://sf.net/p/mossco/code/ci/master/tree/doc/license/MOSSCO_contributor_license_agreement_individual.pdf>.
-
-3. Entities please sign the MOSSCO Entity CLA, to be found in the local file
-  `./doc/license/MOSSCO_contributor_license_agreement_entity.pdf` or online
-  <https://sf.net/p/mossco/code/ci/master/tree/doc/license/MOSSCO_contributor_license_agreement_entity.pdf>.
-
-> If you do not own the copyright in the entire work of authorship, we can only
-accept your contribution provided that the parts that you do not own copyright
-of (1) are clearly marked, and (2) are released under an OSI or FSF-approved
-open software license, (3) and the original copyright statement and the names
-of all authors are retained.