Development News October: Add post image and improve intro

content/en/post/2019-11-06-development-news-october.md

@@ -2,9 +2,12 @@
 title: Development News October 2019
 subtitle: Gajim development news
 date: 2019-11-06
+bigimg: [{src: "/img/news/development-news.jpg"}]
 ---
 
-**This is the first post of a news series about Gajim's development. In these posts I (wurstsalat) will try to summarize a month of development around Gajim. Sometimes these posts will also cover python-nbxmpp and XMPP in general. Feel free to join [gajim@conference.gajim.org](xmpp:gajim@conference.gajim.org?join) to discuss with us.**
+**This is the first post of a news series about Gajim's development. In these posts I (wurstsalat) will try to summarize a month of development around Gajim. Sometimes these posts will also cover python-nbxmpp and XMPP in general. Obtober's development brought improvements to MacOS, Jingle File Transfer, Delivery Receipts, and more. Feel free to join [gajim@conference.gajim.org](xmpp:gajim@conference.gajim.org?join) to discuss with us.**
+
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 ## Changes in Gajim