Merge pull request #98 from sasezaki/gitattributes

Setup .gitattributes - in order to exclude tests and other dev files from dist

Author: smeghead

.gitattributes

@@ -0,0 +1,12 @@
+/.github/                     export-ignore
+/test/                        export-ignore
+.gitattributes                export-ignore
+.gitignore                    export-ignore
+compose.yaml                  export-ignore
+Dockerfile                    export-ignore
+php.ini                       export-ignore
+phpstan.neon                  export-ignore
+phpunit.xml                   export-ignore
+social-media-preview.png      export-ignore
+social-media-preview.xcf      export-ignore
+update-dogfood-images.sh      export-ignore