[Major]: Paper refers to a different planner

[Birdsmyth]

Link to affected page(s):

https://planning.wiki/ref/planners/hsp

Quote of incorrect text:

Paper: A Heuristic Search Approach to Planning with Temporally Extended Preferences [ Baier, J. A. Bacchus, F. McIlraith, S. A. ]

Error in text:

This paper describes a later planner from 2006: HPLAN-P

Proposed corrections:

Link instead to the original paper by Bonet and Geffner about HSP

[nergmada]

@Birdsmyth Thanks for your interest, please see issue #95