Throughout the song, he’s hammering on (and off) the first fret on the B string
for the G chord (which would be Gadd11 with the hammer on) and Cmaj7 (C with the hammer on) chords 
and pull offs for the D in the chorus to a Dsus2.
Once you listen to the track, it makes more sense.

[Intro]
   
    x2

[Verse 1]
             
Well the road 

              
rolls out like

                
 a welcome mat
         
To a better pl

              
ace than the o

             
ne we're at
             
And I ain't go

              
t no kinda pla

  
n
             
But I've had a

              
ll of this tow

              
n I can stand
             
And I got frie

              
nds out on the

        
 coast
         
We can jump in

              
 the water and

              
 see what floa

    
ts
             
We've been sav

              
ing for a rain

      
y day
             
Let's beat the

              
 storm and be 

           
on our way


[Chorus]
           
And it don't m

/      
atter to me
             
Wherever we ar

           
e is where I w

#    
anna be
            
And Honey, for

         
 once in our l

ife
              
Let's take our

            
 chances and r

/     
oll the dice
             
I can be your 

             
lucky penny, y

              
ou can be my f

              
our-leaf clove

  
r
            
Starting over

   

    

 


[Verse 2]
             
This might not

              
 be an easy ti

    
me
         
There's rivers

              
 to cross and 

                
hills to climb
             
Some days we m

              
ight fall apar

 
t
             
And some night

              
s might feel c

             
old and dark
             
But nobody win

              
s afraid of lo

      
sing
         
And the hard r

              
oads are the o

              
nes worth choo

     
sing
             
Some days we'l

              
l look back an

        
d smile
             
And know it wa

              
s worth every 

     
mile


[Chorus]
           
And it don't m

/      
atter to me
             
Wherever we ar

           
e is where I w

#    
anna be
            
And Honey, for

         
 once in our l

ife
              
Let's take our

            
 chances and r

/     
oll the dice
             
I can be your 

             
lucky penny, y

              
ou can be my f

              
our-leaf clove

  
r
            
Starting over

   


        
Starting over

   

[Bridge]

  
   

[Outro]
        
It don't matte

     
r to me
             
Wherever we ar

           
e is where I w

#    
anna be
            
And Honey, for

         
 once in our l

ife
              
Let's take our

            
 chances and r

/     
oll the dice
             
I can be your 

             
lucky penny, y

              
ou can be my f

              
our-leaf clove

  
r

            
Starting over

   



        
Starting over

   

        
Oooh, ooh-ooh-

     
ooh

        
Oooh, ooh-ooh-

       
ooh