Add detailed profiling to all reports and README

- Update README.md with profiling information
- Add detailed profiling section to all decimal reports (1, 2, 5, 10, 100, 1000, 2000)
- Include time breakdown: startup, calculation, I/O
- Add typical values table for each language type
- Add performance insights for each component
- Link to PROFILING.md documentation

README.md

@@ -160,8 +160,21 @@ Detailed performance reports are available for each decimal precision level:
 
 # Run specific language
 cd c && ./build.sh && ./print_hej
+
+# Run detailed profiling (breaks down execution time)
+./profile_detailed.sh 100
 ```
 
+## Detailed Profiling
+
+The benchmark includes a detailed profiling system that breaks down execution time into components:
+
+- **Startup Time**: Runtime initialization, library loading, JIT compilation
+- **Calculation Time**: Algorithm execution, numerical operations
+- **I/O Time**: Output formatting, result printing
+
+See [PROFILING.md](PROFILING.md) for detailed documentation.
+
 ## License
 
 MIT License - See LICENSE file for details.