preparing 2.1.0 release

.gitattributes

@@ -1,20 +1,20 @@
 # Set the default behavior, in case people don't have core.autocrlf set.
 * text eol=lf
 
-*.gif binary
-*.jpg binary
-*.png binary
-*.webp binary
-
 # Ignore all test and documentation with "export-ignore".
-/.github                  export-ignore
-/.gitattributes           export-ignore
-/.gitignore               export-ignore
-/.scrutinizer.yml         export-ignore
-/.php-cs-fixer.dist.php   export-ignore
-/tests                    export-ignore
-/composer.lock            export-ignore
-/mkdocs.yml               export-ignore
-/phpstan.neon             export-ignore
-/phpunit.xml              export-ignore
-/rector.php               export-ignore
+/.github                   export-ignore
+/.gitattributes            export-ignore
+/.gitignore                export-ignore
+/.php-cs-fixer.dist.php    export-ignore
+/.scrutinizer.yml          export-ignore
+/docs                      export-ignore
+/tests                     export-ignore
+/composer.lock             export-ignore
+/backward-compatibility.md export-ignore
+/CODE_OF_CONDUCT.md        export-ignore
+/CONTRIBUTING.md           export-ignore
+/mkdocs.yml                export-ignore
+/phpstan.neon              export-ignore
+/phpstan-baseline.neon     export-ignore
+/phpunit.xml               export-ignore
+/renovate.json             export-ignore