Add mariolang

Fixes: #856

m/mariolang

@@ -0,0 +1,8 @@
++>+>)+)+)+++)++++((((-[!)>->.
++"+"===================#+".")
++++!((+++++++++)++++++)<.---+
+++=#===================")---.
+++((.-(.)).+++..+++++++.<---
+ !+======================---
+=#>++++++++++++++.).+++.-!>!
+  =======================#=#

readme.md

@@ -8,7 +8,7 @@ Thanks to everyone who continues to contribute; new languages are created every
 Make sure to see [CONTRIBUTING.md](/CONTRIBUTING.md) for instructions on contributing to the project!
 
 <!--Languages start-->
-## Languages (709 total)
+## Languages (710 total)
 
 * [05Ab1E](%23/05AB1E)
 * [0815](%23/0815.0815)
@@ -423,6 +423,7 @@ Make sure to see [CONTRIBUTING.md](/CONTRIBUTING.md) for instructions on contrib
 * [Magic](m/magic)
 * [Make](m/make.makefile)
 * [Malbolge](m/malbolge.mbg)
+* [Mariolang](m/mariolang)
 * [Markdown](m/markdown.md)
 * [Mathematica Online](m/mathematica-online.nb)
 * [Matlab](m/matlab.m)