clarify keyed each block tutorial text

site/content/tutorial/04-logic/05-keyed-each-blocks/text.md

@@ -6,7 +6,7 @@ By default, when you modify the value of an `each` block, it will add and remove
 
 It's easier to show why than to explain. Click the 'Remove first thing' button a few times, and notice what happens: It removes the first `<Thing>` component, but the *last* DOM node. Then it updates the `name` value in the remaining DOM nodes, but not the emoji. 
 
-Instead, we'd like to remove only the first `<Thing>` component and its DOM node, and leave the rest unaffected.
+Instead, we'd like to remove only the first `<Thing>` component and its DOM node, and leave the others unaffected.
 
 To do that, we specify a unique identifier (or "key") for the `each` block:
 
@@ -16,6 +16,6 @@ To do that, we specify a unique identifier (or "key") for the `each` block:
 {/each}
 ```
 
-Here, `(thing.id)` is the key, which tells Svelte how to figure out which DOM node to change when the component changes.
+Here, `(thing.id)` is the *key*, which tells Svelte how to figure out which DOM node to change when the component updates.
 
 > You can use any object as the key, as Svelte uses a `Map` internally — in other words you could do `(thing)` instead of `(thing.id)`. Using a string or number is generally safer, however, since it means identity persists without referential equality, for example when updating with fresh data from an API server.