Update README.md

Author: DevKevYT

README.md

@@ -1,2 +1,67 @@
 # Excel-CellColor-Server
 A Java Server which returns all colored cells to an uploaded Excel Sheet.
+
+## RUN THE EXCEL SERVER:
+
+You may configure the .jar with two arguments:
+- Maximum amount of clients which can be connected at the same time
+- Maximal amount of time a client can be connected to the server (Given in milliseconds)
+
+You should only run the .jar file inside a terminal. This way you can cconfigure both arguments as you like.
+
+Example command to run the server:
+
+```java -Xmx1G -jar excelServer.jar 10 10000```
+
+## SERVER FUNCTIONS
+
+In general, it is possible to send commands to the server. These are simple strings sent over a TCP socket.
+Clients are resticted to request only one line of String per connection. This would usually be a command with some arguments.
+> "do-something"
+
+Data generated and sent back to the requesting client is always in this JSON format:
+```json
+{
+  "message": { 
+    "some": "data"
+  }
+  "errorMessage": "ErrorMessage"
+}
+```  
+Please note that only either the "message" or the "errorMessage" field are present in the JSON. Never both.
+Here is a list of the current commands for version 1.1.1:
+
+#### convertxssf
+* This commands expects no arguments. When the response "ready" is sent, the server expects the excel file as stream.
+When finished, the server will response with a list of cells with their x and y index and their color
+
+## CHANGELOG
+
+### 1.0.1 (OBSOLETE!)
+- Fixing a vulnerability
+- More detailed logging for better minitoring
+- Only errors are logged
+- Arguments can become infinite if a value 0 or below 0 is provided.
+
+### 1.1.0
+- Logfile creation "instancelog.log".
+- Server admin commands: 
+    - A list can be called with "help"
+    - You can also execute shell commands
+- Changed the 'convertxsff' client command flow. `!Aktueller client nicht mehr mit 1.0.1 kompatibel!`
+
+### 1.1.1
+- Fixed an issue, where there would always be an error thrown on the first client connection of an instance.
+- Various more bugfixes
+
+# Excel Server dependencies:
+
+- <a>https://github.com/DevKevYT/devscript</a> version: '1.9.4'<br>
+- <a>https://mvnrepository.com/artifact/org.apache.poi/poi</a> version: '5.1.0'<br>
+- <a>https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml</a> version: '5.1.0'<br>
+- <a>https://mvnrepository.com/artifact/org.apache.xmlbeans/xmlbeans</a> version: '2.3.0'<br>
+- <a>https://mvnrepository.com/artifact/dom4j/dom4j</a> version: '1.6.1'<br>
+- <a>https://mvnrepository.com/artifact/org.apache.commons/commons-collections4</a> version: '4.3'<br>
+- <a>https://mvnrepository.com/artifact/org.apache.commons/commons-compress</a> version: '1.18'<br>
+- <a>https://mvnrepository.com/artifact/org.apache.poi/ooxml-schemas</a> version: '4.1'
+