update readme.md

Author: steven-ja

README.md

@@ -7,18 +7,19 @@ On my website you can find a detailed summary of my work experience, education p
 Moreover, I will use this website as a blogging platform. I will talk about several interesting topics:
 
 1. [Finance](https://ragespin.github.io/posts/finance/):
-   -  Stock Prediction
+   - Stock Prediction
       - [x] ARIMA
       - [x] SARIMA
       - [x] SARIMAX
       - [x] GRU/ LSTM
       - [ ] GARCH
-   -  Monte Carlo
-2. Physics:
+   - Monte Carlo
+   - Portfolio Optimization
+2. [Physics](https://ragespin.github.io/posts/physics):
    - [x] Percolation 
    - [ ] Water Dynamics
    - [ ] Lunar Lander (and Earth/ Mars Lander)
-4. [Machine Learning](https://ragespin.github.io/posts/machine-learning/):
+3. [Machine Learning](https://ragespin.github.io/posts/machine-learning/):
    - Deep Learning:
       - Computer Vision
          - [x] Image Segmentation with (Florence-2, ...)
@@ -27,7 +28,10 @@ Moreover, I will use this website as a blogging platform. I will talk about seve
       - NLP
          - [x] LLM
          - [x] RAG
+         - [ ] Chatbot
          - [ ] Text-to-SQL
       - Audio:
          - [ ] Music Generation
          - [ ] Text-to-Speech
+   - Graph NN
+   - Reinforcement Learing: