update supported kernel versions in docs

doc/distribution_linux.md

@@ -1,8 +1,8 @@
 # Linux Distribution
 
 #### Using pre-build packages
-**Intel® RealSense™ SDK 2.0** provides installation packages for Intel X86/AMD64-based Debian distributions in [`dpkg`](https://en.wikipedia.org/wiki/Dpkg) format for Ubuntu 16/18/20 [LTS](https://wiki.ubuntu.com/LTS).    
-The Realsense [DKMS](https://en.wikipedia.org/wiki/Dynamic_Kernel_Module_Support) kernel drivers package (`librealsense2-dkms`) supports Ubuntu LTS kernels 4.4, 4.8, 4.10, 4.13, 4.15, 4.18*, 5.0*, 5.3* and 5.4. Please refer to [Ubuntu Kernel Release Schedule](https://wiki.ubuntu.com/Kernel/Support) for further details.
+**Intel® RealSense™ SDK 2.0** provides installation packages for Intel X86/AMD64-based Debian distributions in [`dpkg`](https://en.wikipedia.org/wiki/Dpkg) format for Ubuntu 16/18/20/22 [LTS](https://wiki.ubuntu.com/LTS).    
+The Realsense [DKMS](https://en.wikipedia.org/wiki/Dynamic_Kernel_Module_Support) kernel drivers package (`librealsense2-dkms`) supports Ubuntu LTS kernels 4.4, 4.8, 4.10, 4.13, 4.15, 4.18*, 5.0*, 5.3*, 5.4, 5.13 and 5.15. Please refer to [Ubuntu Kernel Release Schedule](https://wiki.ubuntu.com/Kernel/Support) for further details.
 
 #### Configuring and building from the source code
 While we strongly recommend to use DKMS package whenever possible, there are certain cases where installing and patching the system manually is necessary:

doc/installation.md

@@ -66,7 +66,7 @@ The scripts and commands below invoke `wget, git, add-apt-repository` which may
   4. Build and apply patched kernel modules for: <br />
    * **Ubuntu 20/22 (focal/jammy) with LTS kernel 5.13, 5.15 **<br />
       `./scripts/patch-realsense-ubuntu-lts-hwe.sh`<br />
-   * **Ubuntu 14/16/18/20 with LTS kernel**<br />
+   * **Ubuntu 14/16/18/20 with LTS kernel (< 5.13) **<br />
       `./scripts/patch-realsense-ubuntu-lts.sh`<br />
    * **Ubuntu with Kernel 4.16**<br />
       `./scripts/patch-ubuntu-kernel-4.16.sh`<br />