CMakeLists/README/DOC - updates and fixes (#43)

* CMakeLists/README/DOC - updates and fixes

* Fix few typos in the sample code in doc

* Add a sample code snippet for decoding a batch of jpeg images

README.md

@@ -24,7 +24,7 @@ rocJPEG is a high performance JPEG decode SDK for AMD GPUs. Using the rocJPEG AP
 > [!IMPORTANT]
 > `gfx908` or higher GPU required
 
-* Install ROCm `6.1.0` or later with [amdgpu-install](https://rocm.docs.amd.com/projects/install-on-linux/en/latest/how-to/amdgpu-install.html): Required usecase - rocm
+* Install ROCm `6.3.0` or later with [amdgpu-install](https://rocm.docs.amd.com/projects/install-on-linux/en/latest/how-to/amdgpu-install.html): Required usecase - rocm
 
 > [!IMPORTANT]
 > `sudo amdgpu-install --usecase=rocm`
@@ -87,7 +87,7 @@ The installation process uses the following steps:
 
 * [ROCm-supported hardware](https://rocm.docs.amd.com/projects/install-on-linux/en/latest/reference/system-requirements.html) install verification
 
-* Install ROCm `6.1.0` or later with [amdgpu-install](https://rocm.docs.amd.com/projects/install-on-linux/en/latest/how-to/amdgpu-install.html) with `--usecase=rocm`
+* Install ROCm `6.3.0` or later with [amdgpu-install](https://rocm.docs.amd.com/projects/install-on-linux/en/latest/how-to/amdgpu-install.html) with `--usecase=rocm`
 
 * Use either [Package install](#package-install) or [Source install](#source-install) as described below.