Update screenshot and ensure sample files match

README.md

@@ -25,7 +25,8 @@ In this JavaScript example, we can see:
 whitespace.
 
 (2) Difftastic understands which lines should be aligned. It's aligned
-`bar()` on the left with `bar(1)` on the right, despite their changes.
+`bar(1)` on the left with `bar(2)` on the right, even though the
+textual content isn't identical.
 
 (3) Difftastic understands that line-wrapping isn't
 meaningful. `"eric"` is now on a new line, but it hasn't changed.

sample_files/compare.expected

@@ -89,7 +89,7 @@ sample_files/javascript_before.js sample_files/javascript_after.js
 51ffab103bd475c322b7aa42f35c094e  -
 
 sample_files/javascript_simple_before.js sample_files/javascript_simple_after.js
-53725de32eabe5ff5a9230bd30cae28a  -
+3357d9d47a5e7efb3c7677745993ea2b  -
 
 sample_files/json_before.json sample_files/json_after.json
 bae479fb04e15baf9460c5274c77963b  -

sample_files/javascript_simple_after.js

@@ -1,9 +1,11 @@
 // hello
 if (true) {
   foo();
-  bar(1);
+  bar(2);
   baz();
 }
 
-var people = ["john", "harry", "dick", "yvonne",
+var people = [
-              "archibald", "jenny", "alexandra"];
+  "john", "harry", "dick", "yvonne",
+  "eric", "jenny", "alexandra",
+];

sample_files/javascript_simple_before.js

@@ -1,7 +1,9 @@
 // hello
 foo();
-bar();
+bar(1);
 baz();
 
-var people = ["john", "harry", "dick", "archibald",
+var people = [
-              "jenny", "alexandra"];
+  "john", "harry", "dick", "eric",
+  "jenny", "alexandra",
+];