Added Installation instructions.

INSTALL.txt

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+Start with Debian 12
+
+APT-Install git openssl mkcert postgresql nginx vim make python3-pip python3-venv curl 
+Apt-Install php-bz2 php-curl php-gd php-intl php-mbstring php-mcrypt php-pdo php-pgsql php-xml php-zip
+Apt-Install certbot python3-certbot-nginx golang-go 
+
+Create a working directory
+
+cmd: cd <Working Directory>
+
+cmd: git clone https://code.cacert.org/cacert/oidc-registration-php.git
+
+cmd: cd oidc-registration-php
+
+cmd: cp cacert.ini.sample cacert.ini
+
+Edit cacert.ini and set the Database User and Password that you wish to use.
+Also set the Domain and Host name in the URL variables.
+
+cmd: cd misc
+
+Edit oidc_db_v2.sql and insert the Database User name chosen above.
+
+As Root: cmd: cp oidc_db_v2.sql /var/lib/postgres
+As Root: cmd: su - postgres
+cmd: createuser -s -d -e -r -P bdmc ( Pwd: apin1000 )
+cmd: createdb oidc_db -O bdmc
+cmd: psql oidc_db < oidc_db_v2.sql
+Ctrl-D
+
+cmd: cd ..
+
+cmd: mkdir -p $HOME/.local/share/virtualenvs ~/.local/bin
+cmd: python3 -m venv $HOME/.local/share/virtualenvs/ansible
+cmd: $HOME/.local/share/virtualenvs/ansible/bin/pip install ansible
+cmd: ln -s $HOME/.local/share/virtualenvs/ansible/bin/ansible* $HOME/.local/bin/
+cmd: export PATH=$HOME/.local/bin:$HOME/go/bin:$PATH
+cmd: go install github.com/nicksnyder/go-i18n/v2/goi18n@latest
+
+
+cmd: git clone --recurse-submodules https://code.cacert.org/cacert/oidc-parent.git
+cmd: cd oidc-parent
+# cause pull, fetch and other git commands to consider submodules
+cmd: git config submodule.recurse true
+
+Edit: deployment/roles/oidc_idp/templates/idp_config.toml.j2
+and ensure that the last line contains 'level = "debug"'.
+
+cmd: make
+Change into the "deployment" sub-directory
+cmd: cd deployment
+cmd: ansible-playbook -K 01_install_cacert_oidc.yml
+Answer the password question for your user.
+
+cmd: cd ..
+cmd: cd ..
+
+As Root: cmd: certbot --nginx -d <your domain name>
+
+From your working directory, do the following As Root:
+	cmd: cd oidc-registration-php
+	cmd: cp -r * /var/www/html
+	cmd: cp ssl-certs/* /usr/local/share/ca-certficates
+	cmd: update-ca-certificates -f
+	cmd: cp misc/reverse-proxy.conf /etc/nginx/conf.d
+
+As Root: cmd: ( cd /var/www/html ; mv -i index.html index.html-orig )
+
+Once you are finished, you may change the Background Image, the Logo and the Favicon, as you wish.
+
+
+