Fix typo in documentation (#82)

* Fix typo in documentation for PowerLieGroup
* Fix doc display in vee description
* Update src/Lie_algebra/Lie_algebra_interface.jl

---------

Co-authored-by: Ronny Bergmann <git@ronnybergmann.net>

Author: wuzh07

src/Lie_algebra/Lie_algebra_interface.jl

@@ -371,7 +371,7 @@ _doc_vee = """
     vee!(𝔤::LieAlgebra, c, X)
 
 Compute the vee map ``(⋅){\\vee}: $(_math(:𝔤)) → $(_tex(:Cal, "V"))`` that maps a tangent vector `X`
-from the [`LieAlgebra`](@ref) $(_math(:𝔤)) to its coordinates with respect to the [`DefaultLieAlgebraOrthogonalBasis`](@ref) basis in the Lie algebra
+from the [`LieAlgebra`](@ref) ``$(_math(:𝔤))`` to its coordinates with respect to the [`DefaultLieAlgebraOrthogonalBasis`](@ref) basis in the Lie algebra
 
 ```math
 X = $(_tex(:sum))_{i∈$(_tex(:Cal, "I"))} c_iB_i,

src/groups/power_group.jl

@@ -24,7 +24,7 @@ If passed a Lie group `G`, the group operation on the [`PowerLieGroup`](@ref) is
 but applied elementwise. Internally, the corresponding [`PowerGroupOperation`](@ref) is created.
 If you pass a manifold `M`, you have to provide the corresponding [`PowerGroupOperation`](@ref) yourself.
 
-Bot the arguments `args...` as well as the keyword arguments `kwargs...` are passed on to
+Both the arguments `args...` as well as the keyword arguments `kwargs...` are passed on to
 the constructor of the [`PowerManifold`](@extref `ManifoldsBase.PowerManifold`).
 This especially includes the `size` of the manifold and allows to specify a [`NestedPowerRepresentation`](@extref `ManifoldsBase.NestedPowerRepresentation`).
 """