feat: rewrite docs

spec/README.md

@@ -1,45 +1,51 @@
-# The scienting specifications
+# The manuspec specification
 
-This is the specification of the scienting formats: exactly what each file holds and how every value in it is computed.
-For what the formats are for, start with the [guides](../docs/README.md); this text assumes you know why and tells you how.
-Schemas, SQL, the JSON-LD context, the registries, the vectors and the fixtures are normative too, and the chapters say which.
-Where a chapter and a vector disagree, the disagreement is a bug; please report it.
+This specification states exactly what each manuspec file holds and how every value in it is computed.
+The schemas, SQL, JSON-LD context, registries, vectors and fixtures are normative too, and each chapter says which of them it relies on.
+A chapter and a vector that disagree signal a bug, so please report it in the repository, <https://git.scient.ing/infra/manuspec>.
+
+Two readers will get the most from it: implementers who build a reader, writer, converter or checker, and experts who want the precise rules.
+Newcomers should start with the [guides](../docs/README.md), which explain what the formats are for.
+This text assumes you know why and tells you how.
 
 ## Reading paths
 
+Find the row for the job you are doing and read its chapters after those in the first row.
+Chapter numbers are those in the table below.
+
 | If you are writing | Read |
 | --- | --- |
-| Anything at all | 0, 1, 3, 4 and 5: conventions, nodes, identity and the content values. |
+| Anything at all | 0, 1, 3, 4 and 5: introduction, conventions, nodes, identity and the content values. |
 | A reader of packages | Then 2, 6, 7 and 12: the model, anchors, geometry and the package. |
 | A converter | Then 9, 10 and 11: figures and tables, references, and corrections with the gate. |
 | A store or a server | Then 8, 13 and 14: receipts, the database form, and rights. |
-| A tool for annotation, teaching or data | Then 15 to 21. |
+| A writer or reader of annotation, teaching or data files | Then 15 to 21. |
 | A validator | Chapter 22, with [registry/rules.json](../registry/rules.json). |
 
 ## Chapters
 
 | Chapter | Subject |
 | --- | --- |
-| [00](00-introduction.md) | Scope, conformance, versions and status |
-| [01](01-conventions.md) | Canonical JSON, numbers, hashes, normalization, offsets, times, IDs, keys and files |
-| [02](02-model.md) | Works, versions, witnesses and documents; `document.json` and `witnesses.json` |
-| [03](03-nodes.md) | Nodes, their kinds and children, content, attributes and inline runs |
-| [04](04-identity.md) | Minting IDs, permanence, retirement, aliases and record IDs |
-| [05](05-hashes.md) | The five content values, the projections, alignment, suspects and keyed hashes |
-| [06](06-anchors.md) | Addresses, anchors and the five resolutions, with drift |
-| [07](07-geometry.md) | Page fingerprints, stamp rules, pages and locations |
-| [08](08-fidelity.md) | Fidelity levels, receipts, the roster, revocations, spot-checks and error bounds |
-| [09](09-figures-tables-equations.md) | Figures, panels, tables, cells and equations |
-| [10](10-references.md) | References and citations |
-| [11](11-corrections.md) | Corrections and the gate |
-| [12](12-package.md) | The package |
-| [13](13-database.md) | The database form and the bundle |
-| [14](14-rights.md) | Rights records, policies, stages and backends |
-| [15](15-datasets.md) | Datasets |
-| [16](16-digitization.md) | Digitization records |
-| [17](17-views.md) | Views |
-| [18](18-layers.md) | Layers and annotations |
-| [19](19-exercises.md) | Exercises, submissions and grades |
-| [20](20-projects.md) | Projects |
-| [21](21-drafts.md) | Drafts: snapshots and sentence-ID sidecars |
-| [22](22-conformance.md) | Conformance, the suite and the rule catalog |
+| [0. Introduction](00-introduction.md) | Scope, conformance, versions and status, and how the repository is arranged |
+| [1. Shared conventions](01-conventions.md) | Canonical JSON, numbers, hashes, normalization, offsets, times, determinism, IDs, keys, files and prose |
+| [2. Works, versions, witnesses and documents](02-model.md) | The four objects; `document.json` and `witnesses.json` |
+| [3. Nodes](03-nodes.md) | Nodes, their kinds and children, content, attributes, inline runs and the plain projection |
+| [4. Identity](04-identity.md) | Minting IDs, permanence, retirement, aliases, `ids.jsonl`, store-qualified names and record IDs |
+| [5. Content values](05-hashes.md) | The five content values, the projections, alignment, suspects, keyed hashes and the metadata hash |
+| [6. Addresses and anchors](06-anchors.md) | Addresses, anchors and the five resolutions, with drift |
+| [7. Geometry](07-geometry.md) | Page fingerprints, stamp rules, `pages.jsonl` and `locations.jsonl` |
+| [8. Fidelity, receipts and spot-checks](08-fidelity.md) | Fidelity levels, receipts, signatures, Merkle roots, the roster, revocations, spot-checks and error bounds |
+| [9. Figures, tables and equations](09-figures-tables-equations.md) | Figures, panels, tables, cells and equations |
+| [10. References and citations](10-references.md) | Reference nodes, `references.jsonl` and its resolutions, and sentence-level citations |
+| [11. Corrections](11-corrections.md) | Corrections and the gate |
+| [12. The package](12-package.md) | The files of a package, paths, manifest, provenance, text policies and assets |
+| [13. The database form and the bundle](13-database.md) | The database form and the SQLite bundle |
+| [14. Rights](14-rights.md) | Rights records, policies, stages and backends |
+| [15. Datasets](15-datasets.md) | Frictionless Data Packages with units, uncertainty and origin; `anchors.jsonl`; content hash |
+| [16. Digitization records](16-digitization.md) | How values were read off a figure panel: target, axes, series, method, verification and confirmation |
+| [17. Views](17-views.md) | Vega-Lite specifications that pin their data, and optional computations |
+| [18. Layers and annotations](18-layers.md) | Layers and annotations |
+| [19. Exercises, submissions and grades](19-exercises.md) | Exercises, submissions and grades |
+| [20. Projects](20-projects.md) | Members and roles, documents, reading paths, held layers, datasets, views and drafts, and settings |
+| [21. Drafts](21-drafts.md) | Drafts: snapshots and sentence-ID sidecars |
+| [22. Conformance](22-conformance.md) | Conformance, the suite and the rule catalog |