fix(deps): update dependency showdown to v1.7.6

package.json

@@ -71,7 +71,7 @@
     "semver": "5.4.1",
     "semver-stable": "2.0.4",
     "semver-utils": "1.1.1",
-    "showdown": "1.7.5",
+    "showdown": "1.7.6",
     "tmp": "0.0.33",
     "traverse": "0.6.6",
     "yarn": "1.0.2"

yarn.lock

@@ -4712,9 +4712,9 @@ shellwords@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/shellwords/-/shellwords-0.1.1.tgz#d6b9181c1a48d397324c84871efbcfc73fc0654b"
 
-showdown@1.7.5:
-  version "1.7.5"
-  resolved "https://registry.yarnpkg.com/showdown/-/showdown-1.7.5.tgz#08edefd1aa7af35bd6de18a4e30192e2f5e176cb"
+showdown@1.7.6:
+  version "1.7.6"
+  resolved "https://registry.yarnpkg.com/showdown/-/showdown-1.7.6.tgz#ac3d3de9bec712372d0406487476ad97a27b4c34"
   dependencies:
     yargs "^9.0.1"