ntp_snippets: update string based on feedback

components/ntp_snippets_strings.grdp

 <?xml version="1.0" encoding="utf-8"?>
 <grit-part>
 
   <if expr="is_android">
     <message name="IDS_SNIPPETS_DISABLED_SIGNED_OUT_INSTRUCTIONS" desc="Body of the card explaining the status of the content suggestions on the New Tab Page, when the user is signed out." formatter_data="android_java">
       To get personalized content suggested by Google, sign in to Chrome.
     </message>
     <message name="IDS_SNIPPETS_DISABLED_GENERIC_PROMPT" desc="Title of the card explaining what action the user can take to get personalized content suggestions on the New Tab Page." formatter_data="android_java">
       Get personalized content
     </message>
@@ skipping 36 matching lines @@
   </message>
 
   <message name="IDS_NTP_RECENT_TAB_SUGGESTIONS_SECTION_HEADER" desc="Header of the recent tabs section, which is a list of recent open tabs, which are currently opened and were automatically saved for offline consumption. This list is displayed as cards on the New Tab Page. The saved version is opened only if there are problems with the data connection (e.g. slow or absent).">
     Open tabs
   </message>
 
   <message name="IDS_NTP_RECENT_TAB_SUGGESTIONS_SECTION_EMPTY" desc="On the New Tab Page, text of the card explaining to the user that they can expect to see recent open tabs in this area in the future, but currently this area is empty. Recent open tabs - the tabs which are currently opened and were automatically saved for offline consumption.">
     Your open tabs appear here
   </message>
 
-  <message name="IDS_NTP_NOTIFICATIONS_READ_THIS_STORY_AND_MORE" desc="When notifying the user about a news article, identifies the publisher of that article and gives the number of additional news articles that are available to read. Shown beneath the title of the article. Articles come in batches of 10, so the number of additional articles will usually be 9.">
-    Read stories from <ph name="ARTICLE_PUBLISHER">$1<ex>World News Corporation</ex></ph> and <ph name="OTHER_ARTICLE_COUNT">$2<ex>9</ex></ph> more
+  <message name="IDS_NTP_NOTIFICATIONS_READ_THIS_STORY_AND_MORE" desc="Used in notifications about news articles. The notification first gives the title of a headline article, then uses this string to identify the publisher of that article and the number of additional articles available to read. Articles come in batches of 10, from a variety of publishers, so usually the number of additional articles is 9 (headline article + 9 others = 10 articles).">
+    From <ph name="ARTICLE_PUBLISHER">$1<ex>World News Corporation</ex></ph>. Read this and <ph name="OTHER_ARTICLE_COUNT">$2<ex>9</ex></ph> other stories.
   </message>
 
 </grit-part>