Merge branch 'master' into v2

README.md

@@ -26,6 +26,7 @@ Websites built with Gatbsy:
 * [Damir.io](http://damir.io/) [(source)](https://github.com/dvzrd/gatsby-sfiction)
 * [Ruben's Blog](https://vagr9k.me/) [(source)](https://github.com/Vagr9K/Blog)
 * [Kostas Bariotis' Blog](https://kostasbariotis.com/) [(source)](https://github.com/kbariotis/kostasbariotis.com)
+* [Travellers.cafe](https://travellers.cafe/)
 
 ## Docs
 

cds-takeaways.md

@@ -0,0 +1,8 @@
+* preload at top of page for resources ala flipkart
+* marketing points — cost of aquisition, boosts from switching
+to PWA.
+* sites to copy — NASA website + polymer shop but for Packard cars
+* On GraphQL errors — print the query plus where it came from and give
+  them the link to debug it in GraphiQL
+* AggressiveSplitPlugin — limit max chunk size to 250kb.
+* SW render-dom-stream and stream HTML to browser.

data-notes.md

@@ -0,0 +1,35 @@
+new SourceDirectory({
+  parsers: [
+    {
+      typeName: 'blogPosts',
+      plugin: 'gatsby-source-markdown',
+      selector: '(*.md|*.markdown}',
+    },
+    {
+      typeName: '',
+      plugin: 'gatsby-source-markdown',
+      selector: '(*.md|*.markdown}',
+    },
+  ]
+})
+
+Just copy Jekyll?
+
+/content -> markdown
+/data -> yaml, csv, toml, json
+
+With each parsers already setup. For data, the default is that each data
+file is it's own type derived from the name of the file.
+
+So file sources that have many things in one file — type === fileName
+For file sources where each thing is a file — type is directory based.
+
+Look by default for pages in /pages
+but this is again just a plugin so you can add other directory sources
+if desired.
+
+composable themes? So have a base gatsby theme that has this minimal
+jekyll-esque setup?
+
+Other themes can build on top of it or of course there could be other
+base themes.