add documentation link to README.md

README.md

@@ -39,6 +39,7 @@ git submodule update --init --recursive
 **It is same as the Native K4A, refer to [Building and Dependencies](./docs/building.md)**
 
 Quick Instructions:
+
 * Windows:
 
     ```powershell
@@ -64,6 +65,10 @@ Quick Instructions:
 
 Connect the Orbbec camera to your PC, and run the k4aviewer.
 
+## Documentation
+
+API documentation is available [here](https://orbbec.github.io/docs/OrbbecSDK_K4A_Wrapper/bolt-1.7.x-dev/).
+
 ## Attention
 
 1. The library of this branch is not support the K4A device, please use the [Native K4A](https://github.com/microsoft/Azure-Kinect-Sensor-SDK) library to access the K4A device.

src/orbbec/ob_k4a_impl.c

@@ -2040,7 +2040,7 @@ k4a_result_t version_convert(const char *orbbec_version, k4a_version_t *k4a_vers
     }
 
     char split_version[MAX_FIREWARE_VERSION_LEN] = { 0 };
-    size_t count = 0;
+    int count = 0;
 
     for (int i = 0; i < orbbec_version_len; i++)
     {
@@ -2051,7 +2051,7 @@ k4a_result_t version_convert(const char *orbbec_version, k4a_version_t *k4a_vers
         }
     }
 
-    size_t split_version_len = orbbec_version_len - count;
+    int split_version_len = orbbec_version_len - count;
     memcpy(split_version, orbbec_version + count, (uint16_t)split_version_len);
 
     count = 0;