fix typos in docstrings of elementary_weight (#95)

* fix typos in docstrings of `elementary_weight`

* update version

Author: ranocha

Project.toml

@@ -1,7 +1,7 @@
 name = "RootedTrees"
 uuid = "47965b36-3f3e-11e9-0dcf-4570dfd42a8c"
 authors = ["Hendrik Ranocha <mail@ranocha.de> and contributors"]
-version = "2.15.0"
+version = "2.15.1"
 
 [deps]
 Latexify = "23fbe1c1-3f47-55db-b15f-69d7ec21a316"

src/time_integration_methods.jl

@@ -206,7 +206,7 @@ color_to_index(color::Bool) = 1 + color
     elementary_weight(t::ColoredRootedTree, ark::AdditiveRungeKuttaMethod)
 
 Compute the elementary weight Φ(`t`) of the [`AdditiveRungeKuttaMethod`](@ref)
-`ark` for a colored rooted tree `t``.
+`ark` for a colored rooted tree `t`.
 
 # References
 
@@ -353,7 +353,7 @@ end
     elementary_weight(t::RootedTree, ros::RosenbrockMethod)
 
 Compute the elementary weight Φ(`t`) of the [`RosenbrockMethod`](@ref) `ros`
-for a rooted tree `t``.
+for a rooted tree `t`.
 """
 function elementary_weight(t::RootedTree, ros::RosenbrockMethod)
     dot(ros.b, derivative_weight(t, ros))