Fix parsing with multi-lines quotes

Prospective fix for issue #25

Author: ogoffart

lib.rs

@@ -428,7 +428,7 @@ fn get_balanced<'a>(
         } else {
             *result.to_mut() += line;
         }
-        if level == 0 {
+        if level == 0 && !in_quote {
             return Ok(result);
         }
         line = if let Some(l) = lines.next() {
@@ -807,6 +807,11 @@ ixyz = [
         "arrays"
     ]
 ]
+replace = """
+<!-- next-header -->
+## [Unreleased] - ReleaseDate
+"""
+
 [dev-dependencies]
 ## dep1
 dep1 = {