Create lipidMapsWithoutMapping.md

docs/WikidataTests/lipidMapsWithoutMapping.md

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+# LIPID MAPS identifier without a match in Wikidata
+
+This https://lipidmaps.org/databases/lmsd identifier is used in WikiPathways but it does not have a known
+entry in https://wikidata.org/.
+
+## Why does this fail show up?
+
+If the used LIPID MAPS identifier exists in LIPID MAPS, then there is nothing wrong with WikiPathways
+and no curation is needed in WikiPathways.
+
+This test fails if the latest BridgeDb metabolite identifier mapping does not have a mapping.
+The cause can be that the lipid is not listed in Wikidata yet, or that the BridgeDb file did
+not capture it yet.
+
+## Curation action
+
+This test is really aimed a curation of Wikidata and LIPID MAPS. You can check if the lipid is
+found in Wikidata with this https://scholia.toolforge.org/ URL pattern:
+[https://scholia.toolforge.org/lipidmaps/LMFA03020002](https://scholia.toolforge.org/lipidmaps/LMFA03020002).
+
+If it is there, then the BridgeDb metabolite ID mapping database may be too old. You can encourage
+the development team in [this issue tracker](https://github.com/bridgedb/create-bridgedb-metabolites/issues)
+to make a new release.