Update README.md

README.md

@@ -1,5 +1,7 @@
 # Mex.jl
 
+![](https://github.com/byuflowlab/GXBeam.jl/workflows/Run%20tests/badge.svg)
+
 *Embedding [Julia](http://julialang.org/) in the [MATLAB](http://www.mathworks.com/products/matlab/) process*
 
 **Mex.jl** embeds Julia into the MATLAB process using MATLAB's [C++ Mex interface](https://www.mathworks.com/help/matlab/cpp-mex-file-applications.html).  This allows Julia functions to be called from MATLAB.  This also allows (embedded) Julia to call MATLAB functions.  
@@ -125,4 +127,4 @@ ans =
 
 The first argument to `jl.mex` is the name of the function to be invoked. All remaining arguments are treated as function arguments. 
 
-`jl.mex` expects the functions on which it is invoked to accept a single argument of type `Vector{MATLAB.MxArray}` and to return an iterable collection of values on which `MATLAB.mxarray` may be successfully invoked (_e.g._, a value of type `Vector{MATLAB.MxArray}`).
+`jl.mex` expects the functions on which it is invoked to accept a single argument of type `Vector{MATLAB.MxArray}` and to return an iterable collection of values on which `MATLAB.mxarray` may be successfully invoked (_e.g._, a value of type `Vector{MATLAB.MxArray}`).