Update README.md for main and server

examples/main/README.md

@@ -239,6 +239,17 @@ The `--mirostat-ent` option sets the Mirostat target entropy (tau), which repres
 
 Example usage: `--mirostat 2 --mirostat-lr 0.05 --mirostat-ent 3.0`
 
+### XTC Sampling
+
+-   --xtc-probability p: xtc probability (default: 0.0 => disabled)
+-   --xtc-threshold t  : xtc threshold   (default: 1.0 => disabled)
+
+### Top-n-sigma Sampling
+
+Sets all logits $L_i$ to $-\infty$ where $L_i < L_{\rm max} - n \sigma$. Here $L_{\rm max}$ is the maximum logit, $\sigma$ is the logit standard deviation, and $n$ is the top-n-sigma parameter.
+
+-   --top-n-sigma t          top-n-sigma parmeter (default: 0.0 => disabled)
+
 ### Logit Bias
 
 -   `-l TOKEN_ID(+/-)BIAS, --logit-bias TOKEN_ID(+/-)BIAS`: Modify the likelihood of a token appearing in the generated text completion.

examples/server/README.md

@@ -98,6 +98,9 @@ sampling:
                                   (default: 0, 0 = disabled, 1 = Mirostat, 2 = Mirostat 2.0)
          --mirostat-lr N          Mirostat learning rate, parameter eta (default: 0.1)
          --mirostat-ent N         Mirostat target entropy, parameter tau (default: 5.0)
+         --xtc-probability p      xtc probability (default: 0.0 => disabled)
+         --xtc-threshold t        xtc threshold (default: 1.0 => disabled)
+         --top-n-sigma t          top-n-sigma parmeter (default: 0.0 => disabled)
          -l TOKEN_ID(+/-)BIAS     modifies the likelihood of token appearing in the completion,
                                   i.e. `--logit-bias 15043+1` to increase likelihood of token ' Hello',
                                   or `--logit-bias 15043-1` to decrease likelihood of token ' Hello'