diff --git a/CMakeLists.txt b/CMakeLists.txt
index 096fda9..41a8d97 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.25)
-project(TCPSocket VERSION 0.1.2 DESCRIPTION "TCP Socket" LANGUAGES CXX)
+project(TCPSocket VERSION 0.1.3 DESCRIPTION "TCP Socket" LANGUAGES CXX)
 
 set(CMAKE_CXX_STANDARD 17)
 
@@ -9,6 +9,7 @@ set(CMAKE_CXX_STANDARD 17)
 # Add the source files
 set(SOURCES
         src/TCPClient.cpp
+        src/TCPUtils.cpp
 )
 
 # Add the header files
diff --git a/README.md b/README.md
index 58b28d5..339c464 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,6 @@ git clone https://github.com/modelec/TCPSocketClient.git
 cd TCPSocketClient
 mkdir build && cd build
 cmake ..
-make
 sudo make install
 ```
 
@@ -48,6 +47,21 @@ int main() {
 }
 ```
 
+CMakeLists.txt
+```cmake
+cmake_minimum_required(VERSION 3.20)
+project(MyClient)
+
+set(CMAKE_CXX_STANDARD 17)
+
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(TCPSocket REQUIRED TCPSocket)
+
+add_executable(MyClient MyClient.cpp)
+
+target_link_libraries(MyClient TCPSocket)
+```
+
 ### What that do
 The client start a thread that listen to the server and call the method handleMessage when a message is received.
 
diff --git a/example/client.test.cpp b/example/client.test.cpp
index bd4a05f..0239c6d 100644
--- a/example/client.test.cpp
+++ b/example/client.test.cpp
@@ -1,7 +1,7 @@
 #include <TCPSocket/TCPClient.hpp>
 
 int main() {
-    TCPClient client("127.0.0.1", 8082); // Replace "127.0.0.1" with the IP address of your server and 8080 with the port number
+    TCPClient client("127.0.0.1", 8080); // Replace "127.0.0.1" with the IP address of your server and 8080 with the port number
 
     client.start();
 
diff --git a/include/TCPSocket/TCPUtils.hpp b/include/TCPSocket/TCPUtils.hpp
index af27ee0..71b9458 100644
--- a/include/TCPSocket/TCPUtils.hpp
+++ b/include/TCPSocket/TCPUtils.hpp
@@ -1,37 +1,12 @@
 #pragma once
 
 #include <vector>
+#include <string>
 
-inline bool startWith(const std::string& str, const std::string& start)
-{
-    return str.rfind(start, 0) == 0;
-}
+inline bool startWith(const std::string& str, const std::string& start);
 
-inline bool endsWith(const std::string& str, const std::string& end)
-{
-    if (str.length() >= end.length())
-    {
-        return (0 == str.compare(str.length() - end.length(), end.length(), end));
-    }
-    return false;
-}
+inline bool endsWith(const std::string& str, const std::string& end);
 
-inline bool contains(const std::string& str, const std::string& sub)
-{
-    return str.find(sub) != std::string::npos;
-}
+inline bool contains(const std::string& str, const std::string& sub);
 
-inline std::vector<std::string> split(const std::string& str, const std::string& delimiter)
-{
-    std::vector<std::string> tokens;
-    size_t prev = 0, pos = 0;
-    do
-    {
-        pos = str.find(delimiter, prev);
-        if (pos == std::string::npos) pos = str.length();
-        std::string token = str.substr(prev, pos - prev);
-        if (!token.empty()) tokens.push_back(token);
-        prev = pos + delimiter.length();
-    } while (pos < str.length() && prev < str.length());
-    return tokens;
-}
\ No newline at end of file
+inline std::vector<std::string> split(const std::string& str, const std::string& delimiter);
\ No newline at end of file