Add .editorconfig (#598)

Author: dyve

.editorconfig

@@ -0,0 +1,23 @@
+# https://editorconfig.org/
+
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+insert_final_newline = true
+trim_trailing_whitespace = true
+end_of_line = lf
+charset = utf-8
+
+[*.py]
+max_line_length = 88
+
+[*.toml]
+indent_size = 2
+
+[docs/**.rst]
+max_line_length = 79
+
+[*.{yaml,yml}]
+indent_size = 2

MANIFEST.in

@@ -1,5 +1,6 @@
 include LICENSE
 include MANIFEST.in
+include .editorconfig
 include *.yaml
 include pyproject.toml
 include *.md