Add more docs

docs/algorithms.md

@@ -1,4 +1,12 @@
-# Qube Algorithms
+---
+jupytext:
+  text_representation:
+    extension: .md
+    format_name: myst
+    format_version: 0.13
+    jupytext_version: 1.16.4
+---
+# Under the Hood
 
 ## Set Operations
 
@@ -55,11 +63,12 @@ This structure means that node.values can take different types, the two most use
 
 Qube.fused_set_operations can dispatch on the two types given in order to efficiently compute set/set, set/range and range/range intersection operations.
 
-### Performance considerations
+### Performance considerations
 
 This algorithm is quadratic in the number of matching keys, this means that if we have a level with a huge number of nodes with key 'date' and range types (since range types are currently restricted to being contiguous) we could end up with a quadtratic slow down.
 
 There are some ways this can be sped up:
+
 * Once we know any of just_A, intersection or just_B are empty we can discard them. Only for quite pathological inputs (many enums sparse enums with a lot of overlap) would you actually get quadratically many non-empty terms.
 
 * For ranges intersected with ranges, we could speed the algorithm up significantly by sorting the ranges and walking the two lists in tandem which reduces it to linear in the number of ranges.

docs/api.md

@@ -0,0 +1,14 @@
+# API 
+
+## Set Operations
+
+```{code-cell} python3
+from qubed import Qube
+
+A = Qube.from_dict({
+    "a=1": {"b": {1, 2, 3}, "c": {1}},
+    "a=2": {"b": {1, 2, 3}, "c": {1}},
+})
+A
+```
+

docs/development.md

@@ -0,0 +1,8 @@
+# Development
+
+To build the develop branch from source install a rust toolchain and pip install maturin then run:
+```
+git clone -b develop git@github.com:ecmwf/qubed.git
+cd qubed
+maturin develop
+```

docs/index.md

@@ -10,6 +10,10 @@ jupytext:
 # Qubed
 
 ```{toctree}
+:maxdepth: 1
+quickstart.md
+api.md
+development.md
 algorithms.md
 ```
 

docs/quickstart.md

@@ -0,0 +1,45 @@
+---
+jupytext:
+  text_representation:
+    extension: .md
+    format_name: myst
+    format_version: 0.13
+    jupytext_version: 1.16.4
+---
+# Quickstart
+
+## Installation
+```
+pip install qubed
+```
+
+## Usage
+Make an uncompressed qube:
+
+```{code-cell} python3
+from qubed import Qube
+
+q = Qube.from_dict({
+    "class=od" : {
+        "expver=0001": {"param=1":{}, "param=2":{}},
+        "expver=0002": {"param=1":{}, "param=2":{}},
+    },
+    "class=rd" : {
+        "expver=0001": {"param=1":{}, "param=2":{}, "param=3":{}},
+        "expver=0002": {"param=1":{}, "param=2":{}},
+    },
+})
+q
+```
+
+Compress the qube:
+
+```{code-cell} python3
+q.compress()
+```
+
+Load some example qubes:
+
+```{code-cell} python3
+
+### Set Operations