Merge pull request #12 from optuna/feature/add-notice

Feature/add notice

README.md

@@ -2,18 +2,4 @@
 OptunaHub Registry
 ==================
 
-# List of Packages
-
-## Samplers
-
-|Title|Description|
-| :---: | :---: |
-|[Demo Sampler](package/samplers/demo)|Demo Sampler of OptunaHub|
-|[Simulated Annealing Sampler](package/samplers/simulated_annealing)|Sampler based on simulated annealing algorithm.|
-|[Simple Sampler](package/samplers/simple)|An easy sampler base class to implement custom samplers.|
-
-## Visualization
-
-|Title|Description|
-| :---: | :---: |
-|[Plot Hypervolume History with Reference Point](package/visualization/plot_hypervolume_history_with_rp)|<img src="package/visualization/plot_hypervolume_history_with_rp/img/thumbnail.png" width="160px" height="120px" alt="Plot hypervolume history with the reference point information.">|
+__NOTICE: OptunaHub Registry is currently under preparation. We do not accept requests for package registration from the general public.__