Update changelog

[why]
The icon change with Devicons update is not clearly marked as
'breaking'.

[how]
Add a 'breaking' paragraph.

Also add some more items and clarify others.

Reported-by: Xavier Chanthavong <xavier@atsign.com>
Signed-off-by: Fini Jastrow <ulf.fini.jastrow@desy.de>

_posts/2017-01-07-release.md

@@ -21,13 +21,16 @@ to a more maintained fork that has lots of asked for icons. Some very old icons
 been dropped now; hope noone is really affected. See the description in #1691 for
 a complete list.
 
+### Breaking
+ - Because Devicons are updated some old icons were dropped (replaced) #1691
+
 ### Fonts
  - Add Departure Mono @rektdeckard #1709
+ - Add Monaspace weight ExtraLight (Italic) #1670
  - Update 0xProto to 2.201 @my4ng #1623
  - Update Intel One Mono to 1.4.0 #1741
  - Update Monaspace to v1.101 @Stealthii #1630
- - Add Monaspace ExtraLight (Italic)
- - Fix upstream Gohufont bug #1654
+ - Fix upstream Gohufont 14 question mark bug #1654
 
 ### Icons
  - Switch to devicons/devicon #1691
@@ -39,9 +42,9 @@ a complete list.
  - Improve Ruby and Firebase icons
 
 ### Features
- - Add CLI cheatsheet script @hasecilu #1694
- - archive-fonts: Put fontconfig file into SymbolsOnly package (for repackagers)
- - Unify configuration files for font-patcher and gotta-patch-em (format changed)
+ - Add shell based cheat-sheet script @hasecilu #1694
+ - Add fontfonfig file to SymbolsOnly release archive (for repackagers) #1713
+ - Unify configuration files for font-patcher and gotta-patch-em (format changed) #1613
 
 ### Bugs and improvements
  - Fix Powerline glyphs position and size in some cases #1727
@@ -52,7 +55,8 @@ a complete list.
  - gotta-patch-em: Remove post processing
  - Increase Powerline overlap (big triangles and more) #1724
  - Increase weather icons 'other' icons scale #1726
- - ShareTechMono: Fix fi/fl ligs
+ - ShareTechMono: Fix fi/fl ligs #1631
+ - PowerShell install @jpawlowski #1701
 
 ### Website and docs
 Again a lot has been done by various people, thank you all!