Update dependency markdown-toc to ^1.2.0

Author: renovate-bot

package.json

@@ -30,7 +30,7 @@
     "preset"
   ],
   "devDependencies": {
-    "markdown-toc": "^1.0.2",
+    "markdown-toc": "^1.2.0",
     "mocha": "^6.0.2"
   },
   "dependencies": {

yarn.lock

@@ -1043,9 +1043,10 @@ markdown-link@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/markdown-link/-/markdown-link-0.1.1.tgz#32c5c65199a6457316322d1e4229d13407c8c7cf"
 
-markdown-toc@^1.0.2:
+markdown-toc@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/markdown-toc/-/markdown-toc-1.2.0.tgz#44a15606844490314afc0444483f9e7b1122c339"
+  integrity sha512-eOsq7EGd3asV0oBfmyqngeEIhrbkc7XVP63OwcJBIhH2EpG2PzFcbZdhy1jutXSlRBBVMNXHvMtSr5LAxSUvUg==
   dependencies:
     concat-stream "^1.5.2"
     diacritics-map "^0.1.0"