title: How to concatenate the following dataframe
body: <p>I have two dataframes:</p>
  
  <pre><code>file_date = str((date.today() - timedelta(days = 2)).strftime('%m-%d-%Y'))
  file_date
  </code></pre>
  
  <p>github_dir_path = '<a href="https://github.com/CSSEGISandData/COVID-19/raw/master/csse_covid_19_data/csse_covid_19_daily_reports/" rel="nofollow noreferrer">https://github.com/CSSEGISandData/COVID-19/raw/master/csse_covid_19_data/csse_covid_19_daily_reports/</a>'
  file_path = github_dir_path  + file_date + '.csv' 
  first dataframe:</p>
  
  <pre><code>  FIPS     Admin2     Province_State Country_Region          Last_Update        Lat       Long_  Confirmed  Deaths  Recovered  Active                   Combined_Key
  0     45001.0  Abbeville     South Carolina             US  2020-04-28 02:30:51  34.223334  -82.461707         29       0          0      29  Abbeville, South Carolina, US
  1     22001.0     Acadia          Louisiana             US  2020-04-28 02:30:51  30.295065  -92.414197        130       9          0     121          Acadia, Louisiana, US
  2     51001.0   Accomack           Virginia             US  2020-04-28 02:30:51  37.767072  -75.632346        195       3          0     192         Accomack, Virginia, US
  3     16001.0        Ada              Idaho             US  2020-04-28 02:30:51  43.452658 -116.241552        650      15          0     635                 Ada, Idaho, US
  4     19001.0      Adair               Iowa             US  2020-04-28 02:30:51  41.330756  -94.471059          1       0          0       1                Adair, Iowa, US
  </code></pre>
  
  #
  
  <pre><code>                            0                          0  ...          0         Kerala       0         Kerala       1
  2     2020-02-01             Kerala                                        2                                           0                          0  ...          0         Kerala       0         Kerala       2
  3     2020-02-02             Kerala                                        3                                           0                          0  ...          0         Kerala       0         Kerala       3
  4     2020-02-03             Kerala                                        3                                           0                          0  ...          0         Kerala       0         Kerala       3
  </code></pre>
  
  <p>Please guide me on how to concatenate both the data frames. I tried a couple of things but did not get the expected result.</p>