Update release note for 1.4.0

Signed-off-by: Yukai Huang <yukaihuangtw@gmail.com>

public/docs/release-notes.md

@@ -1,6 +1,36 @@
 Release Notes
 ===
 
+<i class="fa fa-tag"></i> 1.4.0 Syrmaticus mikado <i class="fa fa-clock-o"></i> 2019-11-11
+---
+
+<div style="text-align: center; margin-bottom: 1em;">
+    <img src="https://upload.wikimedia.org/wikipedia/commons/6/60/Mikado_Pheasant_398.jpg" width="300">
+<small style="display: block;">Mikado Pheasant, photo credits to <a href="https://zh.wikipedia.org/wiki/File:Mikado_Pheasant_398.jpg">Snowyowls from wikipedia</a></small>
+</div>
+
+Starting from version 1.4.0, we'll pick one species from [_the endemic species of Taiwan_](https://en.wikipedia.org/wiki/List_of_endemic_species_of_Taiwan) as version name. Is there anyone still remember we've once used type of coffee as our version name? It's time to revive that good convention, but this time we don't need coffee to stay up all night. 💤
+
+It has been over 200+ commits since our last release. These are the highlights from version 1.4.0:
+
+- [New table tools][table-tools] - Create table with auto-formatting and keyboard shortcut
+- [Markdownlint integration][markdownlint] - Lint you markdown document
+- [Support PlantUML, vega-lite renderer][more-renderers] - More renderers to come
+- [Support spoiler container, ruby markdown syntax][more-syntax]
+- [New Emoji sets][new-emoji]
+- [Slide mode plugins][slide-mode-plugins]: Elapsed time bar and Spotlight
+
+[Go read the complete release note here][v1_4_0]. Thank you CodiMD community and all our contributors. ❤️
+
+[table-tools]: https://hackmd.io/@codimd/v1_4_0#New-Table-Tools
+[markdownlint]: https://hackmd.io/@codimd/v1_4_0#Markdownlint-integration
+[more-renderers]: https://hackmd.io/@codimd/v1_4_0#Support-2-new-render-engines-PlantUML-and-Vega-lite
+[more-syntax]: https://hackmd.io/@codimd/v1_4_0#Suppport-2-New-markdown-syntax-Spoiler-and-Ruby
+[new-emoji]: https://hackmd.io/@codimd/v1_4_0#New-emoji-sets
+[slide-mode-plugins]: https://hackmd.io/@codimd/v1_4_0#Slide-mode-enhancement
+
+[v1_4_0]: https://hackmd.io/@codimd/release-notes/%2F%40codimd%2Fv1_4_0
+
 <i class="fa fa-tag"></i> 1.3.1 <i class="fa fa-clock-o"></i> 2019-03-23 00:00
 ---