update docs julia version

Author: MikaelSlevinsky

docs/make.jl

@@ -15,7 +15,7 @@ makedocs(modules=[FastTransforms],
 deploydocs(
     repo   = "github.com/MikaelSlevinsky/FastTransforms.jl.git",
     latest = "master",
-    julia  = "0.5",
+    julia  = "0.6",
     osname = "linux",
     target = "build",
     deps   = Deps.pip("pygments", "mkdocs", "python-markdown-math"),

docs/src/assets/logo.png

@@ -4,13 +4,13 @@
 
 In numerical analysis, it is customary to expand a function in a basis:
 ```math
-f(x) \sim \sum_{\ell=0}^{\infty} f_{\ell} \phi_{\ell}(x).
+f(x) = \sum_{\ell=0}^{\infty} f_{\ell} \phi_{\ell}(x).
 ```
 It may be necessary to transform our representation to one in a new basis, say, ``\{\psi_m(x)\}_{m\ge0}``:
 ```math
-f(x) \sim \sum_{m=0}^{\infty} g_m \psi_m(x).
+f(x) = \sum_{m=0}^{\infty} g_m \psi_m(x).
 ```
-In many cases of interest, both representations are of finite length ``n`` and we seek a fast method (faster than ``\mathcal{O}(n^2)``) to transform the original coefficients ``f_{\ell}`` to the new coefficients ``g_m``.
+In many cases of interest, both representations have finite dimension ``n`` and we seek a fast method (faster than ``\mathcal{O}(n^2)``) to transform the original coefficients ``f_{\ell}`` to the new coefficients ``g_m``.
 
 A similar problem arises when we wish to evaluate ``f`` at a set of points ``\{x_m\}_{m=0}^n``. We wish to transform coefficients of ``f`` to values at the set of points in fewer than ``\mathcal{O}(n^2)`` operations.