Update data_mapping.mdx (#3619)

grammar stuff

Author: joline-statsig

docs/data-warehouse-ingestion/data_mapping.mdx

@@ -16,7 +16,7 @@ Statsig requires certain data schema in order for proper processing. We support
 
 During setup, we will ask you to map columns in your data output to fields Statsig expects and run a small sample query to make sure that there aren't any basic issues with data types, the mapping, or the base query itself.
 
-Please note that we will cast fields into the appropriate type. For example, Statsig accepts String IDs, but it's okay to leave an ID field as an integer.
+Please note that we will cast fields into the appropriate type. For example, Statsig accepts string IDs, but it is okay to leave an ID field as an integer.
 
 ---
 
@@ -28,7 +28,7 @@ Events that are emitted by your application to measure the ongoing impact of you
 
 | Column     | Description                            | Format/Rules                                                                      |
 | ---------- | -------------------------------------- | --------------------------------------------------------------------------------- |
-| timestamp  | The unix time your event was logged at | BIGINT. please cast timestamps into epoch time in seconds                         |
+| timestamp  | The unix time your event was logged at | BIGINT. Please cast timestamps into epoch time in seconds                         |
 | event_name | The name of the event                  | STRING/VARCHAR. Not null. Length < 128 characters                                 |
 | unit_id    | Unique unit identifier                 | STRING/VARCHAR. User ID, Stable ID, etc. The same event row can have multiple IDs |
 
@@ -116,7 +116,7 @@ Exposure events are generated by your assignment tool, when it assigns your user
 
 | Column     | Description                                 | Format/Rules                                                                      |
 | ---------- | ------------------------------------------- | --------------------------------------------------------------------------------- |
-| timestamp  | The unix time your event was logged at      | BIGINT. please cast timestamps into timezoneless unix time                        |
+| timestamp  | The unix time your event was logged at      | BIGINT. Please cast timestamps into timezoneless unix time                        |
 | experiment | Your experiment identifier                  | STRING/VARCHAR. Not null. Length < 128 characters                                 |
 | group_id   | Unique identifier for the experiment groups | STRING/VARCHAR. Not null.                                                         |
 | unit_id    | Unique user identifier                      | STRING/VARCHAR. User ID, Stable ID, etc. The same event row can have multiple IDs |