diff --git a/README.md b/README.md
index ac9f575..1d1f5f6 100644
--- a/README.md
+++ b/README.md
@@ -82,12 +82,12 @@ Video from LHW-createskyblue (UI-v1.6L): https://b23.tv/LiOe54
 ![IMG_20200621_132138_x2.jpg](https://image.easyeda.com/pullimage/8LPUnbOCw2uFf1ozHYkTESbvH1LjlA1zKstsrS5v.jpeg)
 ![IMG_20200621_121350_x.jpg](https://image.easyeda.com/pullimage/5ZW6mQs1im9htCg3NJSryApeGUiSlwTFXnvxJSLq.jpeg)
 
-### Soldering Station v2.6:
+## Soldering Station v2.6:
 
 ![IMG_20200816_141230_x.jpg](https://image.easyeda.com/pullimage/B0Crwq4ZAkTLbKYQlWMz32sMSgKbYp6pCCGzzExT.jpeg)
 ![IMG_20200816_130923_x.jpg](https://image.easyeda.com/pullimage/BpBMLRUhObBq2KgvY0ECxCkv6uOqRW2V4trbMem0.jpeg)
 
-### UI-V1.8t6 UI Upgrade by createskyblue & lihaoyun6
+## UI-V1.8t6 UI Upgrade by createskyblue & lihaoyun6
 
 ![](software/UI_upgrade_by_createskyblue/img/readme/1.jpg)
 
@@ -103,8 +103,7 @@ Video from LHW-createskyblue (UI-v1.6L): https://b23.tv/LiOe54
 
 ![](software/UI_upgrade_by_createskyblue/img/readme/4.jpg)
 
-### 9 segments of temperature curve fitting
-### Soldering tip calibration page
+### 9 segments of temperature curve fitting & Soldering tip calibration page
 
 ![](software/UI_upgrade_by_createskyblue/img/readme/5.jpg)