build: improve Composer archive package

Author: hex7c0

.gitattributes

@@ -1,20 +1,38 @@
 # https://git-scm.com/book/en/v2/Customizing-Git-Git-Attributes
 # https://medium.com/@pablorsk/be-a-git-ninja-the-gitattributes-file-e58c07c9e915
+# from https://github.com/git/git/blob/master/.gitattributes
+# from https://github.com/python/cpython/blob/master/.gitattributes
 
-# A list of files and folders those will be excluded from archives and the
-# Composer package (for purposes of making it smaller).
-/build export-ignore
-/docs export-ignore
-/tests export-ignore
+* text=auto
+
+### Git
+.gitattributes text
+.gitignore text
+.gitconfig text
+.gitmodules text
+
+### Project
+*.phar binary
+*.lock -diff
+*.php text eol=lf diff=php
+*.py text eol=lf diff=python
+*.md text eol=lf diff=markdown
+
+### A list of files and folders those will be excluded from archives and the
+### Composer package (for purposes of making it smaller).
 .editorconfig export-ignore
 .gitattributes export-ignore
 .gitignore export-ignore
-.php_cs export-ignore
-.composer.phar export-ignore
+/.cache/ export-ignore
+/.github/ export-ignore
+/build/ export-ignore
+/docs/ export-ignore
+/linters/ export-ignore
+/scripts/ export-ignore
+/storage/ export-ignore
+/tests/ export-ignore
+/vendor/ export-ignore
+composer.phar export-ignore
 *.xml export-ignore
-*.neon export-ignore
 *.md export-ignore
-
-composer.lock -diff
-
-*.php text eol=lf
+*.neon export-ignore