How to insert a record by using visualforcepage and apex class?

VisualforcePage:

Apex Class:

  public class CreatePeopleCntr{
  
      //Varibles Declation 
      //Prpoerties
      public People__c objPeople{get;set;}
      
      
   
      //Constructor 
      public CreatePeopleCntr(){
      
          system.debug('Calling Constrctort ===>');
          
         //Instances
        
          objPeople = new People__c();
       }
       
       
       //Save Method 
       
       public PageReference Savemethod(){
       
       system.debug('Calling Savemethod()===>');
        system.debug('objPeople===>'+objPeople);
       
           Insert objPeople;
           
           return null;
       }
      }