make top TreeSitter.qll comment into a qldoc

ql/generator/src/main.rs

@@ -604,7 +604,7 @@ fn main() -> std::io::Result<()> {
     let mut ql_writer = LineWriter::new(File::create(ql_library_path)?);
     write!(
         ql_writer,
-        "/*\n\
+        "/**\n\
           * CodeQL library for {}
           * Automatically generated from the tree-sitter grammar; do not edit\n\
           */\n\n",

ql/ql/src/codeql_ql/ast/internal/TreeSitter.qll

@@ -1,4 +1,4 @@
-/*
+/**
  * CodeQL library for QL
  * Automatically generated from the tree-sitter grammar; do not edit
  */

ruby/generator/src/main.rs

@@ -599,7 +599,7 @@ fn main() -> std::io::Result<()> {
     let mut ql_writer = LineWriter::new(File::create(ql_library_path)?);
     write!(
         ql_writer,
-        "/*\n\
+        "/**\n\
           * CodeQL library for {}
           * Automatically generated from the tree-sitter grammar; do not edit\n\
           */\n\n",

ruby/ql/lib/codeql/ruby/ast/internal/TreeSitter.qll

@@ -1,4 +1,4 @@
-/*
+/**
  * CodeQL library for Ruby
  * Automatically generated from the tree-sitter grammar; do not edit
  */