Added onboarding and major changes to template (#28)

* removed gitlens

* adjusted various settings

* added foam onboarding to template

* removed prettier extension

* added setting to match OS color scheme

* a couple of minor changes re todos and readme

* added spellright to list of recommended extensions, and added to getting started guide

* added reference to LTeX in spell checking doc

* Added logo to readme

* fixed link to LTeX extension

* styling logo in readme

* more style experiments

docs/features/link-reference-definitions.md

@@ -0,0 +1,30 @@
+# Link Reference Definitions
+
+When you use `[[wiki-links]]`, the [foam-vscode](https://github.com/foambubble/foam/tree/master/packages/foam-vscode) extension will automatically generate [Markdown Link Reference Definitions](https://spec.commonmark.org/0.29/#link-reference-definitions) at the bottom of the file.
+
+This is done to make the content of the file compatible with various Markdown tools (e.g. parsers, static site generators, VS code plugins etc), which don't support `[[wiki-links]]` directly.
+
+## Example
+
+The following example:
+  ```md
+  - [[graph-visualization]]
+  ```
+...generates the following link reference definitions to the bottom of the file:
+  ```md
+  [graph-visualization]: graph-visualization "Graph Visualization"
+  ```
+
+## Configuration
+
+You can use the `foam.edit.linkReferenceDefinitions` to configure the definitions (see [[get-started-with-vscode]]):
+- `withoutExtensions` (default): this works better with certain web publishing tools (e.g. GitHub pages)
+- `withExtensions`: this works better with standard markdown-based tools (e.g GitHub web UI)
+- `off`: this disables the generation of definitions
+
+After changing the setting in your workspace, you can run the `Foam: Run Janitor (Experimental)` command to convert all existing definitions.
+
+
+[//begin]: # "Autogenerated link references for markdown compatibility"
+[get-started-with-vscode]: ../how-to/get-started-with-vscode.md "Getting started with VsCode"
+[//end]: # "Autogenerated link references"