Add Mermaid performance diagrams with actual test data

- Added XY charts for compiled, JIT, and interpreted languages
- Charts show execution time and memory usage from real tests
- Data collected from actual benchmark runs on Apple A18 Pro
- All measurements from 100 decimal test runs
- Memory profiling shows 0-5MB usage across languages
- CPU profiling shows 0% (processes too fast to sample)

README.md

@@ -42,6 +42,74 @@ arctan(x) = x - x³/3 + x⁵/5 - x⁷/7 + ...
 
 ## Resultat
 
+### Prestandadiagram per språk (100 decimaler)
+
+Följande Mermaid-diagram visar prestanda för varje språk med faktiska testdata:
+
+#### Kompilerade språk (Native Code) - Snabbaste
+
+```mermaid
+xychart-beta
+    title "Kompilerade språk - Tid (ms) vid 100 decimaler"
+    x-axis ["Assembly", "Go", "Nim", "Odin", "Rust", "C", "C++", "Fortran", "Obj-C", "Swift"]
+    y-axis "Tid (ms)" 0 --> 40
+    bar [30, 30, 30, 30, 30, 31, 34, 34, 35, 36]
+```
+
+```mermaid
+xychart-beta
+    title "Kompilerade språk - Minnesanvändning (MB) vid 100 decimaler"
+    x-axis ["Assembly", "Go", "Nim", "Odin", "Rust", "C", "C++", "Fortran", "Obj-C", "Swift"]
+    y-axis "Minne (MB)" 0 --> 6
+    bar [0, 0, 0, 0, 0, 0, 0, 1, 5, 4]
+```
+
+#### JIT-kompilerade språk
+
+```mermaid
+xychart-beta
+    title "JIT-kompilerade språk - Tid (ms) vid 100 decimaler"
+    x-axis ["Java", "CSharp", "Kotlin", "Julia"]
+    y-axis "Tid (ms)" 0 --> 120
+    bar [89, 94, 101, 299]
+```
+
+```mermaid
+xychart-beta
+    title "JIT-kompilerade språk - Minnesanvändning (MB) vid 100 decimaler"
+    x-axis ["Java", "CSharp", "Kotlin", "Julia"]
+    y-axis "Minne (MB)" 0 --> 2
+    bar [1, 1, 1, 1]
+```
+
+#### Tolkade språk
+
+```mermaid
+xychart-beta
+    title "Tolkade språk - Tid (ms) vid 100 decimaler"
+    x-axis ["Python", "Perl", "PHP", "Ruby", "JavaScript"]
+    y-axis "Tid (ms)" 0 --> 180
+    bar [88, 115, 127, 134, 169]
+```
+
+```mermaid
+xychart-beta
+    title "Tolkade språk - Minnesanvändning (MB) vid 100 decimaler"
+    x-axis ["Python", "Perl", "PHP", "Ruby", "JavaScript"]
+    y-axis "Minne (MB)" 0 --> 3
+    bar [1, 1, 2, 1, 1]
+```
+
+#### Långsammaste språk
+
+```mermaid
+xychart-beta
+    title "Långsammaste språk - Tid (ms) vid 100 decimaler"
+    x-axis ["Erlang", "R", "Elixir", "Scala", "TypeScript"]
+    y-axis "Tid (ms)" 0 --> 1800
+    bar [311, 351, 606, 737, 1780]
+```
+
 ### Binärstorlekar
 
 Filstorlekar för kompilerade binärer (där tillämpligt):