40 templates and license (bearmug#43)

* bearmug#40 pull request template

* bearmug#40 update rebar3

* bearmug#40 logo kick-off

.github/PULL_REQUEST_TEMPLATE/pull_request_template.md

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+# Pull Request Template
+
+## Description
+
+Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context.
+List any dependencies that are required for this change.
+
+Fixes # (related issue here)
+
+## Type of change
+
+Please delete options that are not relevant.
+
+- [ ] Bug fix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] This change requires a documentation update
+
+## How Has This Been Tested?
+
+Please describe the tests that you ran to verify your changes. 
+Please also list any relevant details for your test configuration
+
+- [ ] Test A
+- [ ] Test B
+
+## Checklist:
+
+- [ ] Pull request populated with documentation sections above
+- [ ] New code and/or behaviour covered with tests
+- [ ] Documentation changes done if required
+- [ ] No new dialyzer/linter warnings and broken build
+- [ ] I have added tests that prove my fix is effective or that my feature works
+- [ ] Local build passes with `make local`
+- [ ] Open pull request [Travis build](https://travis-ci.org/bearmug/erlang-pure-migrations/pull_requests) passing as well

README.md

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 # Erlang ❤ pure database migrations
+![](./logo.png)
 > PostgreSQL | MySQL version control engine. Applies effects deliberately.
 
 [![Build Status](https://travis-ci.org/bearmug/erlang-pure-migrations.svg?branch=master)](https://travis-ci.org/bearmug/erlang-pure-migrations)