removing scholarperdia link from docs

Author: MartinuzziFrancesco

docs/Project.toml

@@ -11,7 +11,7 @@ ReservoirComputing = "7c2d2b1e-3dd4-11ea-355a-8f6a8116e294"
 StatsBase = "2913bbd2-ae8a-5f71-8c99-4fb6c76f3a91"
 
 [compat]
-CellularAutomata = "0.0.4"
+CellularAutomata = "0.0.2"
 DifferentialEquations = "7.15.0"
 Documenter = "1"
 OrdinaryDiffEq = "6"

docs/src/general/states_variation.md

@@ -6,7 +6,7 @@ In ReservoirComputing models, it's possible to perform alterations on the reserv
 
 ### Extending States
 
-Extending the states involves appending the corresponding input values to the reservoir states. If $\textbf{x}(t)$ represents the reservoir state at time $t$ corresponding to the input $\textbf{u}(t)$, the extended state is represented as $[\textbf{x}(t); \textbf{u}(t)]$, where $[;]$ denotes vertical concatenation. This procedure is commonly used in Echo State Networks and is described in [Jaeger's Scholarpedia](http://www.scholarpedia.org/article/Echo_state_network). You can extend the states in every ReservoirComputing.jl model by using the `states_type` keyword argument and calling the `ExtendedStates()` method. No additional arguments are needed.
+Extending the states involves appending the corresponding input values to the reservoir states. If $\textbf{x}(t)$ represents the reservoir state at time $t$ corresponding to the input $\textbf{u}(t)$, the extended state is represented as $[\textbf{x}(t); \textbf{u}(t)]$, where $[;]$ denotes vertical concatenation. This procedure is commonly used in Echo State Networks. You can extend the states in every ReservoirComputing.jl model by using the `states_type` keyword argument and calling the `ExtendedStates()` method. No additional arguments are needed.
 
 ### Padding States