update docs

Author: mateuszbaran

Changelog.md

@@ -11,7 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 
 * `nonpositive_curvature_behavior` for `QuasiNewtonLimitedMemoryDirectionUpdate` that determines how transported (y, s) vector pairs are treated after transport; if their inner product gets too low, it may lead to non-positive-definite Hessians which needs to be avoided. This resolves issue #549. (#554)
-* `GeneralizedCauchyDirectionFinder` for handling direction selection in the presence of box (`Hyperrectangle`) constraints in quasi-Newton methods. This allows for L-BFGS-B-style box constraint handling. (#554)
+* `GeneralizedCauchyDirectionSubsolver` for handling direction selection in the presence of box (`Hyperrectangle`) constraints in quasi-Newton methods. This allows for L-BFGS-B-style box constraint handling. (#554)
 * New stopping criteria: `StopWhenRelativeAPosterioriCostChangeLessOrEqual` and `StopWhenProjectedNegativeGradientNormLess`. (#554).
 * `HagerZhangLinesearch` stepsize, a state-of-the-art line search for smooth objectives with cubic interpolation and adaptive Wolfe condition checking. (#554)
 * Stopping criteria can now be initialized using `initialize_stepsize!`, similar to solvers. (#554)

docs/src/solvers/generalized_cauchy_direction_subsolver.md

@@ -22,7 +22,7 @@ In case there is no Hessian approximation available, a simple stepsize limiting
 This procedure is available using the following:
 
 ```@docs
-Manopt.MaxStepsizeInDirectionFinder
+Manopt.MaxStepsizeInDirectionSubsolver
 Manopt.find_max_stepsize_in_direction
 ```
 
@@ -35,7 +35,7 @@ These symbols are directly used by solvers to compute the descent direction corr
 ```@docs
 Manopt.has_anisotropic_max_stepsize
 Manopt.find_generalized_cauchy_direction!
-Manopt.GeneralizedCauchyDirectionFinder
+Manopt.GeneralizedCauchyDirectionSubsolver
 ```
 
 ### Symbols related to the Hessian approximation