diff --git a/README.md b/README.md
index dd9b98d794cd34dc6b735c6bcdcc524be749b422..cef298278297269d7c7ff5b9a7d41f4763a77d59 100644
--- a/README.md
+++ b/README.md
@@ -4,13 +4,16 @@ This project realizes a signal community bot known from other social plattforms
 
 # Installation
 This chapter covers the whole installation of the signalbot while using a Raspberry Pi 4 with RaspberryOS already installed. Additionally you'll need a phonenumber that is not linked to an existing signal account.
-If you just want to use the bot via Signal scroll down to [Features](# Features) .
+If you just want to use the bot via Signal scroll down to [Features](# Features).
+You can find any addiotional information in docs/main.pdf.
+
 
 ## Installation preparation
 
-This section describes how to install signal-cli on a Raspberry Pi 4. Note that earlier hardware versions are not supported due to the built-in processor generation. 
+This section describes how to install signal-cli on a Raspberry Pi 4. Note that earlier hardware versions are not supported due to the built-in processor generation. In order for libsignal to work you'll need JRE 17 or higher.
 
 * Installation JRE: `$ sudo apt-get install default-jre`
+* Installation cmake, clang & libclang: `$ apt-get install clang libclang-dev cmake make`
 * Installation Gradle: `$ sudo apt-get install gradle`
 * When installing Rust on a Raspberry Pi, it is recommended to install *rustup - The Rust Language installer* by [snapcraft](https://snapcraft.io/install/rustup/raspbian)
     * Installation of the Snap Store: `$ sudo apt install snapd`
@@ -28,9 +31,6 @@ The *signal-cli* equires the libraries [Libsignal-client](https://github.com/Asa
     * `$ sed -i "s/, ':android'//" settings.gradle`
     * `$ ./build_jni.sh desktop`\
     The compiled library is then located in the directory *libsignal-client* under *target/release/libsignal_jni.so*.
-* Installation of the Libzkgroup library
-    * `$ make libzkgroup`
-	You can optionally compile with four processor cores using the `-j4` parameter.
 
 ## Compilation and installation of the signal-cli
 This section corresponds to the [signal-cli instructions](https://github.com/AsamK/signal-cli#building) for compiling.
@@ -49,7 +49,9 @@ The libraries compiled in the previous section must now be replaced in the compi
     * `exec "$JAVACMD" "$JAVA_LIBRARY_PATH" "$@"`
 
 ##  Installing the required Python libraries
-Automatically install all required packages: `pip3 install -r requirements.txt`
+Manually install the PyGObject: `$ sudo apt install python3-gi`
+Automatically install all required packages: `$ pip3 install -r requirements.txt`
+
 
 # Create an Account
 A phone number is required to create an account. It is possible to receive the opening code via SMS or voice call. In these instructions, a landline number is used for the account and thus the activation by voice call. Please note that the country code must be entered for the telephone number, which is +49 for Germany. 
@@ -114,7 +116,7 @@ The bot will try to guess the language of `<String>`. Example: `.deepl ES, Where
 ## Crawlers
 `.genderneutral <German String>` or `.gn <German String>` - Looks if a string (can be more than one sentence) is genderneutral and displays alternatives for genderspecific words. Powered by [geschicktgendern](https://www.geschicktgendern.de)
 
-`.freegames` -  Displays video games that are currently free, *but usually not*. Powered by [freegamesyo](https://www.freegamesyo.com) 
+`.freegames` -  DISCONTINUED: Displays video games that are currently free, *but usually not*. Powered by [freegamesyo](https://www.freegamesyo.com) 
 
 ## Databases 
 `.saveQuote <"Quote">; <Person>; <Year>` - Save a quote. Example: `.savequote "640 kB ought to be enough for anybody."; Not Gates; 1981`