chore: corrections to documentation

Author: david-roper

docs/en/3-guides/3.3-how-to-upload-data.md

@@ -53,18 +53,18 @@ Open Data Capture allows you to visualize numeric measures over time in a single
 
     - **_Record Array Data_**
 
-      Record array data is a custom form a data entry for when there can be multiple records for one question. For example, the types of scans and their info in a MRI form. If a record contains a set of questions/ data fields A, B, and C, the proper notation for data entry would be as follows:
+      Record array data is a custom form a data entry for when there can be multiple records for one column field. For example, the types of scans and their info in a MRI form would be record array data. If a record contains a set of questions/ data fields A, B, and C, the proper notation for data entry would be as follows:
 
       - RECORD_ARRAY(A: dataEntryForA, B: dataEntryForB, C: dataEntryForC ;)
 
       If the record array question contains multiple records the data entry would look like so:
 
-      - RECORD_ARRAY(A: dataEntryForA, B: dataEntryForB, C: dataEntryForC ; A: dataEntryForA2, B: dataEntryForB2, C: dataEntryForC2 )
+      - RECORD_ARRAY(A: dataEntryForA, B: dataEntryForB, C: dataEntryForC ; A: dataEntryForA2, B: dataEntryForB2, C: dataEntryForC2 ;)
 
-      Note that every ',' notates an new entry in the record, whilst every ';' notates and new record in the record array
+      Note that every "," notates a new entry in the record, whilst every ";" notates a new record in the record array
 
     - **_Optional Data_**
 
-      Whenever data is optional within a form it can be left empty in a form as still be properly submitted. Any optional data column in the csv template will have an "(optional)" tag attached to its sample data entry, which allows for any entry in the column to be left blank. This is usually done in that case of when one column value depends on another. For example, a sessionFailed column would be followed by a an optional reasonForFailure column.
+      Whenever data is optional within a form it can be left empty and still be properly submitted. Any optional data column in the csv template will have an "(optional)" tag attached to its sample data entry, which ,means any entry in the column to be left blank. This is usually done in that case of when one column value depends on another. For example, a sessionFailed column would be followed by a an optional reasonForFailure column.
 
 </Steps>