message: Indicate required features in Cargo.toml for each example
diff: @@ -57,3 +57,103 @@ stdweb = ["instant/stdweb"]
  [badges]
  maintenance = { status = "actively-developed" }
  +
  +[[example]]
  +name = "backtracking"
  +required-features = []
  +
  +[[example]]
  +name = "bfgs"
  +required-features = ["ndarrayl"]
  +
  +[[example]]
  +name = "brent"
  +required-features = []
  +
  +[[example]]
  +name = "checkpoint"
  +required-features = []
  +
  +[[example]]
  +name = "conjugategradient"
  +required-features = []
  +
  +[[example]]
  +name = "dfp"
  +required-features = ["ndarrayl"]
  +
  +[[example]]
  +name = "gaussnewton"
  +required-features = ["ndarrayl"]
  +
  +[[example]]
  +name = "gaussnewton_linesearch"
  +required-features = ["ndarrayl"]
  +
  +[[example]]
  +name = "gaussnewton_nalgebra"
  +required-features = ["nalgebral"]
  +
  +[[example]]
  +name = "goldensectionsearch"
  +required-features = []
  +
  +[[example]]
  +name = "hagerzhang"
  +required-features = []
  +
  +[[example]]
  +name = "landweber"
  +required-features = []
  +
  +[[example]]
  +name = "lbfgs"
  +required-features = ["ndarrayl"]
  +
  +[[example]]
  +name = "morethuente"
  +required-features = []
  +
  +[[example]]
  +name = "neldermead"
  +required-features = ["ndarrayl"]
  +
  +[[example]]
  +name = "newton"
  +required-features = ["ndarrayl"]
  +
  +[[example]]
  +name = "newton_cg"
  +required-features = ["ndarrayl"]
  +
  +[[example]]
  +name = "nonlinear_cg"
  +required-features = []
  +
  +[[example]]
  +name = "particleswarm"
  +required-features = []
  +
  +[[example]]
  +name = "simulatedannealing"
  +required-features = []
  +
  +[[example]]
  +name = "sr1"
  +required-features = ["ndarrayl"]
  +
  +[[example]]
  +name = "sr1_trustregion"
  +required-features = ["ndarrayl"]
  +
  +[[example]]
  +name = "steepestdescent"
  +required-features = []
  +
  +[[example]]
  +name = "trustregion_nd"
  +required-features = ["ndarrayl"]
  +
  +[[example]]
  +name = "writers"
  +required-features = ["ndarrayl"]
  