Update content-nav

Author: breakanalysis

doc/modules/ROOT/content-nav.adoc

@@ -90,6 +90,7 @@
 *** xref:machine-learning/node-embeddings/fastrp.adoc[]
 *** xref:machine-learning/node-embeddings/graph-sage.adoc[]
 *** xref:machine-learning/node-embeddings/node2vec.adoc[]
+*** xref:machine-learning/node-embeddings/hashgnn.adoc[]
 ** xref:algorithms/linkprediction.adoc[]
 *** xref:alpha-algorithms/adamic-adar.adoc[]
 *** xref:alpha-algorithms/common-neighbors.adoc[]
@@ -110,6 +111,7 @@
 *** xref:machine-learning/node-embeddings/fastrp.adoc[]
 *** xref:machine-learning/node-embeddings/graph-sage.adoc[]
 *** xref:machine-learning/node-embeddings/node2vec.adoc[]
+*** xref:machine-learning/node-embeddings/hashgnn.adoc[]
 ** xref:machine-learning/node-property-prediction/index.adoc[]
 *** xref:machine-learning/node-property-prediction/nodeclassification-pipelines/node-classification.adoc[]
 **** xref:machine-learning/node-property-prediction/nodeclassification-pipelines/config.adoc[]