Release 0.3

[pietroppeter]

stuff done here:

• [x] bump version 0.3
• [x] rebuild docs
• [x] added newNbCodeBlock
• [x] added newNbSlimBlock
• [x] address nbText inside template issue (will need to set readCode to false), see https://github.com/HugoGranstrom/nimib-reveal/pull/5#issuecomment-1072511222
  • [x] nbText now does not read code
  • [x] new nbTextWithCode that does read code
  • [x] fixed tests
• [x] fix nbFile
  • [x] remove the untyped version
  • [x] add example document files.nim
• [x] checkout nimibook and fix stuff: https://github.com/pietroppeter/nimibook/pull/50
  • [x] add config utils
• [x] checkout scinim/getting-started and fix stuff: https://github.com/SciNim/getting-started/pull/47

[pietroppeter]

merged to test other PRs, release will be complete in a subsequent PR