use legacy heading anchors

Signed-off-by: Dr. Jan-Philip Gehrcke <[email protected]>

Author: jgehrcke

container-toolkit/install-guide.md

@@ -4,7 +4,6 @@
 
 # Installing the NVIDIA Container Toolkit
 
-
 ## Installation
 
 (pre-requisites)=
@@ -20,6 +19,8 @@ the [_NVIDIA Driver Installation Quickstart Guide_](https://docs.nvidia.com/data
 Alternatively, you can install the driver by [downloading](https://www.nvidia.com/en-us/drivers/) a `.run` installer.
 
 
+(installing-with-apt)=
+
 ### With `apt`: Ubuntu, Debian
 
    ```{note}
@@ -58,6 +59,8 @@ Alternatively, you can install the driver by [downloading](https://www.nvidia.co
    $ sudo apt-get install -y nvidia-container-toolkit
    ```
 
+(installing-with-yum-or-dnf)=
+
 ### With `dnf`: RHEL/CentOS, Fedora, Amazon Linux
 
 
@@ -84,6 +87,8 @@ Alternatively, you can install the driver by [downloading](https://www.nvidia.co
    $ sudo dnf install -y nvidia-container-toolkit
    ```
 
+(installing-with-zypper)=
+
 ### With `zypper`: OpenSUSE, SLE
 
 1. Configure the production repository: