Update README.md

README.md

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 # RIS-Codes-Collection: A Complete Collection Contains the Codes for RIS(IRS) Papers.
 
-## [Latest Update, 06/April/2023] No.103.
+## [Latest Update, 06/April/2023] No.103&104.
 
 * If you find new code for RIS(IRS) paper, please remind me [here](https://github.com/ken0225/RIS_Codes_Collection/issues). 
 
@@ -117,3 +117,4 @@
 |101|[Localization-based OFDM framework for RIS-aided systems](https://github.com/lostinafro/ris-ofdm-loca-scheduling)|Fabio Saggese, etal.|
 |102|[A Framework for Control Channels Applied to Reconfigurable Intelligent Surfaces](https://github.com/lostinafro/ris-control)|Fabio Saggese, etal.|
 |103|[Long-Lasting UAV-aided RIS Communications based on SWIPT](https://github.com/Haoran-Peng/UAV-RIS_EH_DDPG)|Peng Haoran, etal.|
+|104|[Energy Harvesting Reconfigurable Intelligent Surface for UAV Based on Robust Deep Reinforcement Learning](https://github.com/Haoran-Peng/UAV-RIS_EnergyHarvesting)|Peng Haoran, etal.|