Merge pull request #991 from fsharp/dependabot/nuget/fsdocs-tool-20.0.0-alpha-015

Bump fsdocs-tool from 20.0.0-alpha-014 to 20.0.0-alpha-015

Author: nojaf

.config/dotnet-tools.json

@@ -3,7 +3,7 @@
   "isRoot": true,
   "tools": {
     "fsdocs-tool": {
-      "version": "20.0.0-alpha-014",
+      "version": "20.0.0-alpha-015",
       "commands": [
         "fsdocs"
       ]