Correct 2019-06 N&N introductory sentence: grammar & release date

* This is the 2nd simrel in 2019, not the 3rd
* Correct the release date
* I count 76 projects at https://projects.eclipse.org/releases/2019-06

Change-Id: Ie600965d02c13665540bb2963740f59faa30522d
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
diff --git a/2019-06/noteworthy/content/en_index.php b/2019-06/noteworthy/content/en_index.php
index 23df796..9ee4456 100644
--- a/2019-06/noteworthy/content/en_index.php
+++ b/2019-06/noteworthy/content/en_index.php
@@ -17,8 +17,8 @@
 <div class="container">
   <h1>New &amp; Noteworthy</h1>
   <p>
-    2019-06 release is Eclipse Foundation's third quarterly simultaneous release with
-    <a href="https://projects.eclipse.org/releases/2019-06">seventy-five participating projects</a>, available March 20, 2019.
+    The 2019-06 release is the Eclipse Foundation's second quarterly simultaneous release in 2019 with
+    <a href="https://projects.eclipse.org/releases/2019-06">seventy-six participating projects</a>, available June 19, 2019.
   </p>
   <p>
     Here are the new and noteworthy items of various projects in the 2019-06 release train: