Updated FsDocs to 19.1.0

Author: Andrii Chebukin

.config/dotnet-tools.json

@@ -9,7 +9,7 @@
       ]
     },
     "fsdocs-tool": {
-      "version": "16.1.1",
+      "version": "19.1.0",
       "commands": [
         "fsdocs"
       ]