Update copy and layout for the Learn More screen

Closes #219.

## Added

- Adds a Makefile to assist with development

## Changed

- Updates copy and layout for the Learn More screen
- Enables support for HTML (and other options) in the Markdown parser
  for the Learn More sheet
- Updates .gitignore to ignore vim swap files

.gitignore

@@ -6,3 +6,4 @@ node_modules/
 .sourcemaps
 dist/
 docs
+*~

Makefile

@@ -0,0 +1,22 @@
+.PHONY: build example run-dev run-android
+
+build:
+	npm install
+	npm exec -- rimraf dist
+	npm exec -- vue-tsc --declaration --emitDeclarationOnly
+	npm exec -- vite build
+
+
+example: build
+	cd example && \
+		npm install && \
+		npm exec -- run-p type-check build-only && \
+		npx cap sync
+
+run-dev: example
+	cd example && \
+		npm exec -- vite dev
+
+run-android: example
+	cd example && \
+		npx cap run android