diff --git a/.editorconfig b/.editorconfig
index 39400c0b4..5ab5087b0 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -9,3 +9,4 @@ indent_size = 1
 indent_style = space
 end_of_line = lf
 insert_final_newline = true
+trim_trailing_whitespace = false
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 000000000..dcc145fb1
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+*.xml linguist-detectable
+*.ent linguist-language=XML linguist-detectable
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 000000000..b2f1b48fa
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+entities.*.xml