Add docs

docs/content/en/docs/llms_and_prompts/prompt_template.md

@@ -0,0 +1,27 @@
+---
+title: Prompt Template
+description: All about prompt templates.
+weight: 40
+---
+```go
+import "github.com/hupe1980/golc/prompt"
+
+template := `You are a naming consultant for new companies.
+What is a good name for a company that makes {{.product}}?`
+
+pt = promt.NewTemplate(template)
+
+p, err := pt.Format(map]string]any{
+    "product": "colorful socks",
+})
+if err != nil {
+   // Error handling
+}
+
+fmt.Println(p)
+```
+Output:
+```text
+You are a naming consultant for new companies.
+What is a good name for a company that makes colorful socks?
+```