Create contributing guide document. (#38)

* Create contributing guide document.
* Bump copyright to 2021 in README
* update changelog and contributing guide

Signed-off-by: Alexey Dolganov <[email protected]>

Author: aorcl

CHANGELOG.md

@@ -1,11 +1,32 @@
+## 2.0.2 - 2021-01-22
+
+### Added
+
+* CONTRIBUTING.md - contributor's guide
+
+### Changed
+
+* Add link to CONTRIBUTING.md in README.md
+* Bump copyright year to 2021 in README.md
+
+
+## 2.0.1 - 2019-05-08
+
+### Changed
+
+* v0.12 preparation: Fix metadata usage to be canonical
+
+
 ## 2.0.0 - 2018-12-04
 
 ### Changed
+
 - Updated Hostname label for multiple compute instances
 - Updated Volume display name
 - Changes variable assign_public_ip default from true to false 
 
 ### Added
+
 * Support for multiple subnets
 * Support for paravirtualized attachments 
 * Support for private IP list

CONTRIBUTING.md

@@ -0,0 +1,41 @@
+# CONTRIBUTING
+
+Oracle welcomes contributions to this repository from anyone.
+
+If you want to submit a pull request to fix a bug or enhance an existing feature, please first open an issue and link to that issue when you submit your pull request.
+
+If you have any questions about a possible submission, feel free to open an issue too.
+
+## Contributing to the terraform-oci-compute-instance repository
+
+Pull requests can be made under The Oracle Contributor Agreement(OCA).
+
+For pull requests to be accepted, the bottom of your commit message must have the following line using your name and e-mail address as it appears in the OCA Signatories list.
+
+`Signed-off-by: Your Name <[email protected]>`
+
+This can be automatically added to pull requests by committing with:
+
+`git commit --signoff`
+
+or by turning on the "Always Sign Off" flag in your IDE's preferences.
+
+Only pull requests from committers that can be verified as having signed the OCA can be accepted.
+
+## Pull request process
+
+1. Fork this repository
+
+1. Create a branch in your own fork to implement the changes. We recommend using the issue number as part of your branch name, e.g.: `1234-fixes`
+
+1. Ensure that any documentation is updated with the changes that are required by your fix
+
+1. Update README.md when necessary
+
+1. Ensure that any samples are updated if the base image has been changed
+
+1. Update CHANGELOG.md - add information about the changes that are done in this pull request, increment the version
+
+1. Tag your branch with the new version
+
+1. Submit the pull request. **Do not leave the pull request description blank**. Explain exactly what your changes are meant to do and provide simple steps on how to validate your changes. Ensure that you reference the issue you created as well adding `#1234` to the description. We will assign the pull request to 2-3 people for review before it is merged.

README.md

@@ -174,11 +174,13 @@ echo "$uuid ${var.volume_mount_directory} ext4 defaults,noatime,_netdev,nofail
 
 ## Contributing
 
-This project is open source. Oracle appreciates any contributions that are made by the open source community.
+This project is open source. Oracle appreciates any contributions that are made by the open source community. 
+
+Learn how to [contribute](CONTRIBUTING.md)).
 
 ## License
 
-Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
 
 Licensed under the Universal Permissive License 1.0 or Apache License 2.0.