Update README and Dockerfile

Dockerfile

@@ -1,24 +1,24 @@
 FROM fedora:38
 
-RUN yum update -y
+RUN yum update -y && dnf -y groupinstall 'Development Tools'
 
-RUN dnf -y groupinstall 'Development Tools'
-
-RUN dnf -y install bash-completion bzip2 gcc gcc-c++ git make ncurses-devel patch \
+RUN dnf -y install vim bash-completion bzip2 gcc gcc-c++ git make ncurses-devel patch \
     rsync tar unzip wget which diffutils python2 python3 perl-base \
     perl-Data-Dumper perl-File-Compare perl-File-Copy perl-FindBin \
-    perl-Thread-Queue vim hostname perl-IPC-Cmd swig ccache-swig && \
+    perl-Thread-Queue hostname perl-IPC-Cmd swig ccache-swig && \
     dnf install -y clang llvm gcc libbpf-devel libxdp-devel xdp-tools \
     bpftool kernel-headers elfutils-libelf-devel zlib-devel libpcap-devel \
     m4 wireshark-cli && \
     dnf clean all
 
 RUN useradd -m user && \
-    echo 'user ALL=NOPASSWD: ALL' > /etc/sudoers.d/user
+    echo 'user ALL=NOPASSWD: ALL' > /etc/sudoers.d/user ; \
+    echo 'export PS1="[\u@\h \W]\$"' >> .bashrc
 
 USER user
 WORKDIR /home/user
 
 # set dummy git config
 RUN /usr/bin/git config --global user.email "you@example.com" ; \
-    /usr/bin/git config --global user.name "Your Name"
+    /usr/bin/git config --global user.name "Your Name" ; \
+    echo 'export PS1="[\u@\h \W]\$"' >> .bashrc

README.md

@@ -19,7 +19,8 @@ how to use:
 
 ```shell
 mkdir -p openwrt-builder
-podman run -it -u user -v $(pwd)/openwrt-builder/:/home/user:z,rw quay.io/dpawlik/openwrt:f37 /bin/bash
+chmod 0777 openwrt-builder
+podman run -it -u user -v $(pwd)/openwrt-builder/:/home/user:z,rw quay.io/dpawlik/openwrt:f38 /bin/bash
 ```
 
 Then inside the container (from https://openwrt.org/docs/guide-developer/toolchain/use-buildsystem):
@@ -35,7 +36,7 @@ Select a specific code revision:
 ```shell
 git branch -a
 git tag
-git checkout v21.02.1
+git checkout v23.05.0-rc1
 ```
 
 Update the feeds: