Update RapidJSON version in Dockerfiles and included libraries

README.md

@@ -7,11 +7,12 @@ Debian 13 and Rocky Linux 9 container build environments with a C/C++ toolchain,
 Each build script automatically selects Docker or Podman:
 
 ```sh
+./build-all.sh
 ./debian13/build.sh
 ./rockylinux9/build.sh
 ```
 
-Use environment variables to select the container engine or override the image name:
+Use environment variables to select the container engine or override image names:
 
 ```sh
 CONTAINER_ENGINE=podman IMAGE_NAME=my-build-env ./rockylinux9/build.sh