Update ESC minutes titles

Remove the dates from the titles, since the date is also included
in the summary.

Add numbering of the meetings.

Since the titles now contain '#' characters, they must be enclosed
in quotes otherwise the '#' is interpreted as a YAML comment and all
subsequent content is dropped.

Change-Id: I8e9de9a8351b3c05efb496f3761183b448314630
diff --git a/_posts/2019-05-19-esc-minutes.md b/_posts/2019-05-19-esc-minutes.md
index b350ef6..8c98ca9 100644
--- a/_posts/2019-05-19-esc-minutes.md
+++ b/_posts/2019-05-19-esc-minutes.md
@@ -1,5 +1,5 @@
 ---
-title: Gerrit ESC Minutes - 16 May 2019
+title: "Gerrit ESC Meeting #1 Minutes"
 tags: news
 keywords: news
 permalink: 2019-05-19-esc-minutes.html
diff --git a/_posts/2019-05-28-esc-minutes.md b/_posts/2019-05-28-esc-minutes.md
index ea0238c..59c4a91 100644
--- a/_posts/2019-05-28-esc-minutes.md
+++ b/_posts/2019-05-28-esc-minutes.md
@@ -1,5 +1,5 @@
 ---
-title: Gerrit ESC Minutes - 28 May 2019
+title: "Gerrit ESC Meeting #2 Minutes"
 tags: news
 keywords: news
 permalink: 2019-05-28-esc-minutes.html