Merge pull request #194 from totoprayogo1916/gitattributes

Update `.gitattributes`

.gitattributes

@@ -1,10 +1,12 @@
 # Path-based git attributes
 # https://www.kernel.org/pub/software/scm/git/docs/gitattributes.html
 
-# Ignore all test and documentation with "export-ignore".
+# Ignore all development files with "export-ignore".
+/.github            export-ignore
+/docs               export-ignore
+/tests              export-ignore
+/.editorconfig      export-ignore
 /.gitattributes     export-ignore
 /.gitignore         export-ignore
-/.travis.yml        export-ignore
+/.php_cs.dist.php   export-ignore
 /phpunit.xml.dist   export-ignore
-/.scrutinizer.yml   export-ignore
-/tests              export-ignore