Add skeleton for report 19

reports/20210517

+#+TITLE: Weekly Report 2021-19
+
+#+SUBTITLE: week 19
+
+#+AUTHOR: lambdaforge
+
+#+Date: 2021-05-07
+
+#+REVEAL_THEME: black
+
+#+REVEAL_TRANS: convex
+
+#+REVEAL_HLEVEL: 3
+
+#+OPTIONS: toc:nil timestamp:nil
+
+#+REVEAL_ROOT: file:///home/konrad/.revealjs
+
+#+REVEAL_INIT_OPTIONS: history:true, center:true, progress:true, slideNumber:true, slideNumber:'c/t', hlevel: 2
+
+#+REVEAL_EXTRA_CSS: https://lambdaforge.io/assets/css/slides.css
+
+#+REVEAL_DEFAULT_SLIDE_BACKGROUND: https://lambdaforge.io/assets/images/lambdaforge.svg
+
+#+REVEAL_DEFAULT_SLIDE_BACKGROUND_SIZE: 4em
+
+#+REVEAL_DEFAULT_SLIDE_BACKGROUND_POSITION: top left
+
+* Datahike Release 0.3.7 Preparation