Merge pull request #201 from keplersj/dependabot/npm_and_yarn/retext-syntax-mentions-3.0.0

Author: dependabot-preview[bot]

package-lock.json

@@ -40,7 +40,7 @@
     "retext-sentence-spacing": "^5.0.0",
     "retext-simplify": "^7.0.0",
     "retext-spell": "^4.0.0",
-    "retext-syntax-mentions": "^2.1.0",
+    "retext-syntax-mentions": "^3.0.0",
     "retext-syntax-urls": "^3.0.0",
     "unified": "^10.0.0"
   },