docs(README.md, .github): add community pages and add links in README (…

…#13)

* docs(README.md, .github): Add comunity pages and add links in README

* docs(readme.txt): delete unused readme.txt

.github/CODE_OF_CONDUCT.md

@@ -0,0 +1,3 @@
+# Code of Conduct
+
+[You can read the Flynt Code of Conduct here](https://github.com/flyntwp/guidelines/blob/master/CODE_OF_CONDUCT.md).

.github/CONTRIBUTING.md

@@ -0,0 +1,3 @@
+# Contributing to the ACF Field Group Composer
+
+Thank you for taking the time to contribute! Read the [Flynt Contributing Guidelines here](https://github.com/flyntwp/guidelines/blob/master/CONTRIBUTING.md).

README.md

@@ -353,9 +353,9 @@ The main people in charge of this repo are:
 
 ## Contribute
 
-To contribute, please use github [issues](https://github.com/flyntwp/acf-field-group-composer/issues). Pull requests are accepted.
+To contribute, please use GitHub [issues](https://github.com/flyntwp/acf-field-group-composer/issues). Pull requests are accepted. Please also take a moment to read the [Contributing Guidelines](https://github.com/flyntwp/guidelines/blob/master/CONTRIBUTING.md) and [Code of Conduct](https://github.com/flyntwp/guidelines/blob/master/CODE_OF_CONDUCT.md).
 
-Small note: If editing the README, please conform to the [standard-readme](https://github.com/RichardLitt/standard-readme) specification.
+If editing the README, please conform to the [standard-readme](https://github.com/RichardLitt/standard-readme) specification.
 
 ## License