Add sqlite library

Development Guidelines.md

@@ -0,0 +1,30 @@
+1.No "using namespace std;"
+
+2.Clearly declare "private" inside of class. For example:
+
+use 
+```c++
+class item{
+    private:
+    int price;
+    public:
+    getPrice();
+}
+```
+
+instead of class
+ 
+```c++
+class item{
+    int price;
+    public:
+    getPrice();
+}
+```
+
+
+3.Declare inheritance type(public, private, protected) when using inheritance.
+
+4.If not finished with code, add a TODO as comments.
+
+5.Add comments to explain what you want to do.

README.md

@@ -1,3 +1,3 @@
 # Shoppe-Manne
 
-Basic shop management system written in C++
+Basic shop management system written in c++

main.cpp

@@ -1,13 +1,14 @@
 #include<iostream>
+#include "headers/3rd-party/sqlite_orm.h"
 
 class item{
-    private:
-    
     public:
     
+    private:
+
 };
 
 int main(){
-
+std::cout << "Hello";
 return 0;
 }