Update package version to 3.1.0

Author: dpvc

package.json

@@ -1,7 +1,7 @@
 {
   "name": "mathjax",
-  "version": "3.0.5",
-  "description": "Beautiful math in all browsers. MathJax is an open-source JavaScript display engine for LaTeX, MathML, and AsciiMath notation that works in all browsers. This package includes the packaged components (install mathjax-full to get the source code).",
+  "version": "3.1.0",
+  "description": "Beautiful and accessible math in all browsers. MathJax is an open-source JavaScript display engine for LaTeX, MathML, and AsciiMath notation that works in all browsers. This package includes the packaged components (install mathjax-full to get the source code).",
   "keywords": [
     "math",
     "svg",
@@ -13,7 +13,7 @@
     "node"
   ],
   "devDependencies": {
-    "mathjax-full": "3.0.5"
+    "mathjax-full": "3.1.0"
   },
   "maintainers": [
     "MathJax Consortium <info@mathjax.org> (http://www.mathjax.org)"