Updated HTTP request API (markdown)

HTTP-request-API.md

@@ -64,8 +64,8 @@ Parameter | Value Range | Description | Since Version
 &PL= | 0 to 16 | Applies entire preset | 0.4
 &CY= | 0 or 1 | Toggle Preset cycle | 0.6.3
 &PA= | 0 or 1 | Presets apply brightness | 0.7.0
-&P1= | 1 to 25 | First cycle preset | 0.6.3
-&P2= | 1 to 25 | Last cycle preset | 0.6.3
+&P1= | 1 to 16 | First cycle preset | 0.6.3
+&P2= | 1 to 16 | Last cycle preset | 0.6.3
 &PT= | 50 to 65000 | Cycle time in each preset (ms) | 0.6.3
 &TT= | 0 to 65000 | Set transition time (ms) | 0.6.3