I have two dataframe table :

df1 

```
id A
1  wer
3  dfg
5  dfg

```

df2 

```
id A
2  fgv
4  sdfsdf

```

I want to join this to dataframe for one that will look like that:

df3 

```
id A
1 wer
2 fgv
3 dfg

```

...