add an initial sambah_readme.md to the docs

docs/sambah_readme.md

@@ -0,0 +1,25 @@
+# SAMBAH
+
+The Subsetter And Multi-dimensional Batched Aggregation in Harmony (SAMBAH) chain
+executes several services:
+
+1. **CMR Query**: Retrieves information from the Common Metadata Repository (CMR) ([source](https://github.com/nasa/harmony/tree/main/services/query-cmr))
+2. **PODAAC L2-Subsetter** (optional): Performs subsetting on level-2 data granules ([source](https://github.com/podaac/l2ss-py))
+3. **Batchee**: Groups together filenames so that further operations (such as concatenation) can be performed separately on each group of files ([source](https://github.com/nasa/batchee))
+4. **Stitchee**: Concatenates netCDF data along an existing dimension ([source](https://github.com/nasa/stitchee))
+5. **PODAAC CONCISE**: Concatenates netCDF data along a newly created dimension ([source](https://github.com/podaac/concise))
+
+## Known Limitations
+
+-
+
+## Missions supported
+
+The SAMBAH service chain is currently configured to work only with data collections
+from the Tropospheric Emissions: Monitoring of Pollution (TEMPO) mission.
+
+## References
+
+- Service (UMM-S) record ID in CMR: [S2940253910-LARC_CLOUD](https://cmr.earthdata.nasa.gov/search/services.umm_json?concept_id=S2940253910-LARC_CLOUD)
+- Service versions in Harmony Production: <https://harmony.earthdata.nasa.gov/versions>
+- Harmony API - Service Capabilities: <https://harmony.earthdata.nasa.gov/docs#service-capabilities>

mkdocs.yml

@@ -22,6 +22,8 @@ theme:
 nav:
   - OVERVIEW:
       - "Readme": "index.md"
+  - SAMBAH Service Chain:
+      - "Description and known limitations": "sambah_readme.md"
   - EXAMPLES:
       - "Usage of STITCHEE via Harmony": "tutorial_examples.ipynb"