docs: add personal config example to README

Amolith created 

Include my synthetic provider config with DeepSeek-V3.2 model and
detailed directions for dictation cleanup.

Assisted-by: Kimi K2 Thinking via Crush

Change summary

README.md | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)

Detailed changes

README.md 🔗 

@@ -78,6 +78,32 @@ provider's environment variable (e.g. `ANTHROPIC_API_KEY`, `OPENAI_API_KEY`).
 
 CLI flags override config file values.
 
+Here's my config.
+
+```toml
+provider = "synthetic"
+model = "hf:deepseek-ai/DeepSeek-V3.2"
+directions = """
+Correct the transcription to match how I would actually type, after edits and corrections.
+
+- Follow inline dictation instructions, example follows in the section below
+- Remove filler words like "um", "uh", "like", "you know", "so" (when meaningless)
+- Correct words from the transcription engine when the context makes obvious what the word should be, example follows in the section below
+- Remove false starts and repeated words
+- Preserve my intended meaning without rephrasing or "improving" my words
+- No markdown, no formatting, just clean plain text
+
+<dictation_interpretation_example>
+<in>
+This is. An example of speaks, an audio compression codec. Specifically tuned for reproducing. Specifically tuned for the reproduction of the human voice. No, human speech.
+</in>
+<out>
+This is an example of SPEEX, an audio compression codec specifically tuned for the reproduction of human speech.
+</out>
+</dictation_interpretation_example>
+"""
+```
+
 ## Contributions
 
 Patch requests are in [amolith/llm-projects] on [pr.pico.sh]. You don't