chore: add spacing conventions

.editorconfig

@@ -0,0 +1,10 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 2
+indent_style = tab
+
+[*.yml]
+indent_style = space

.gitattributes

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+# Only store LF in git. On Windows, Git will process all text files and
+# make sure that CRLF is replaced with LF when writing that file to
+# the object database and turn all LF back into CRLF when writing out
+# into the working directory.
+#
+# help.github.com/articles/dealing-with-line-endings
+# adaptivepatchwork.com/2012/03/01/mind-the-end-of-your-line
+# git-scm.com/docs/gitattributes#_end_of_line_conversion
+* text=auto