Updated tools api docs

Plugins-Development-Guide.md

@@ -64,11 +64,8 @@ Tools are usually some small features that are not big enough to need their own
 #include <plugin.hpp>
 
 IMHEX_PLUGIN_SETUP {
-    ContentRegistry::Tools::add([] {
+    ContentRegistry::Tools::add("My Fancy Tool", [] {
         // Call into ImHex here to create your new tools interface
-        if (ImGui::CollapsingHeader("My tool")) {
-           // ... 
-        }
     });
 }
 ```