Update conversion-and-promotion.md (#33307)

* Update conversion-and-promotion.md

* Update doc/src/manual/conversion-and-promotion.md

Co-Authored-By: Fredrik Ekre <ekrefredrik@gmail.com>

Author: 2 people

doc/src/manual/conversion-and-promotion.md

@@ -83,7 +83,7 @@ julia> convert(Array{Float64}, a)
  4.0  5.0  6.0
 ```
 
-Conversion isn't always possible, in which case a no method error is thrown indicating that `convert`
+Conversion isn't always possible, in which case a [`MethodError`](@ref) is thrown indicating that `convert`
 doesn't know how to perform the requested conversion:
 
 ```jldoctest