removing `v0.4.0` and linking `v0.4.0` to `v0.4`.

removing `v0.5` and linking `v0.5` to `v0.5.1`.

removing `v0.6` and linking `v0.6` to `v0.6.2`.

removing `v0.7` and linking `v0.7` to `v0.7.0`.

removing `v0.8` and linking `v0.8` to `v0.8.0`.

removing `stable` and linking `stable` to `v0.8.0`.

For 3 @example blocks, the 'text/html' representation of the resulting object is above the threshold (example_size_threshold: 8192 bytes). - 3 blocks had 'image/svg+xml' fallback image representation available, using that. On pages: DuctAPE/tutorial.md