[four-in-a-row] Add basic readme and code of conduct.

[Arnaud B. <arnaudb src gnome org>]

commit 20eef12bccba401252230982996bb97a67e62d2d
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Sat Sep 28 02:27:36 2019 +0200

    Add basic readme and code of conduct.

 README.md          | 10 ++++++++++
 code-of-conduct.md |  3 +++
 2 files changed, 13 insertions(+)
---
diff --git a/README.md b/README.md
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index 0000000..41cf8d8
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+++ b/README.md
@@ -0,0 +1,10 @@
+# Four-in-a-row
+
+A two-player game for GNOME.
+
+## Useful links
+
+- Homepage: <https://wiki.gnome.org/Apps/Four-in-a-row>
+- Report issues: <https://gitlab.gnome.org/GNOME/four-in-a-row/issues/>
+- Translate: <https://wiki.gnome.org/TranslationProject>
+- Code of Conduct: <https://gitlab.gnome.org/GNOME/four-in-a-row/blob/master/code-of-conduct.md>
diff --git a/code-of-conduct.md b/code-of-conduct.md
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index 0000000..7ab9a08
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+++ b/code-of-conduct.md
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+# Code of Conduct
+
+The web-places where this application is developed –mainly on the GNOME Gitlab instance– try to be welcoming 
spaces. If you feel something is missing for reaching that goal, please open an issue about it or notify it 
to the maintainer. Also, note that the [GNOME Foundation code of 
conduct](https://wiki.gnome.org/Foundation/CodeOfConduct) applies there. Thanks.