Update development-guide.md

Co-authored-by: Alex Ilyichov <[email protected]>

development-guide.md

@@ -125,7 +125,7 @@ This operation should report all columns in the destination table, including Fiv
 - `utc_delete_before` has millisecond precision.
 
 #### WriteBatch
-This operations provides details about the batch files containing the retrieved data. We provide a parameter `WriteBatchRequest` which contains all the information required for you to read the batch files. Here are some of the fields included in the request message::
+This operation provides details about the batch files containing the retrieved data. We provide a parameter `WriteBatchRequest` which contains all the information required for you to read the batch files. Here are some of the fields included in the request message:
 - `replace_files` is for `upsert` operation where the rows should be inserted if they don't exist or updated if they do. Each row will always provide values for all columns. Set the `_fivetran_synced` column in the destination with the values coming in from the csv files.
 
 - `update_files` is for `update` operation where modified columns have actual values whereas unmodified columns have the special value `unmodified_string` in `CsvFileParams`. Soft-deleted rows will arrive in here as well. Update the `_fivetran_synced` column in the destination with the values coming in from the csv files.