Fix rendering of deltaThreshold description

Co-authored-by: Ioannis Panagiotas <ioannis.panagiotas@neotechnology.com>

Author: vnickolov

doc/asciidoc/algorithms/alpha/kmeans/specific-configuration.adoc

@@ -5,5 +5,5 @@
 | nodeProperty      | String    | n/a       | no        | A node property to be used by the algorithm.
 | k                 | Integer   | 10        | yes       | Number of desired clusters.
 | maxIterations     | Integer   | 10        | yes       | The maximum number of iterations of K-Means to run.
-| deltaThreshold    | Float     | 0.05      | yes       | Value as a percentage to determine when to stop early. If fewer  than 'deltaThreshold * |nodes|'  nodes change their cluster , the algorithm stops. Value must be between 0 (exclusive) and 1 (inclusive).
+| deltaThreshold    | Float     | 0.05      | yes       | Value as a percentage to determine when to stop early. If fewer  than 'deltaThreshold * \|nodes\|'  nodes change their cluster , the algorithm stops. Value must be between 0 (exclusive) and 1 (inclusive).
 |===