diff --git a/internal/httpclientx/DESIGN.md b/internal/httpclientx/DESIGN.md
index f01c051fc..af22ad1fe 100644
--- a/internal/httpclientx/DESIGN.md
+++ b/internal/httpclientx/DESIGN.md
@@ -189,7 +189,6 @@ originally derived from `httpx`. Anyways, better to double check.
 
 We compare to `httpapi.Call` and `httpx.GetJSONWithQuery`.
 
-| ------------------------- | ------- | ------- | ----- |
 | Operation                 | GetJSON | httpapi | httpx |
 | ------------------------- | ------- | ------- | ----- |
 | enforce a call timeout    |   NO    |   yes   |  NO   |
@@ -238,7 +237,6 @@ the caller try parsing the body and failing if it is indeed truncated.
 
 Here we're comparing to `httpapi.Call` and `httpx.FetchResource`.
 
-| ------------------------- | ------- | ------- | ----- |
 | Operation                 | GetRaw  | httpapi | httpx |
 | ------------------------- | ------- | ------- | ----- |
 | enforce a call timeout    |   NO    |   yes   |  NO   |
@@ -260,12 +258,13 @@ Here we're comparing to `httpapi.Call` and `httpx.FetchResource`.
 | log response body         |   yes   |   yes   |  yes  |
 | handle non-200 response   | ️  yes   |   yes*  |  yes  |
 
+Here we can basically make equivalent remarks as those of the previous section.
+
 #### GetXML
 
 There's no direct equivalent of `GetXML` in `httpapi` and `httpx`. Therefore, when using these
 two APIs, the caller would need to fetch a raw body and then manually parse XML.
 
-| ------------------------- | ------- | ------- | ----- |
 | Operation                 | GetXML  | httpapi | httpx |
 | ------------------------- | ------- | ------- | ----- |
 | enforce a call timeout    |   NO    |   N/A   |  N/A  |
@@ -294,7 +293,6 @@ Because comparison is not possible, there is not much else to say.
 
 Here we're comparing to `httpapi.Call` and `httpx.PostJSON`.
 
-| ------------------------- | -------- | ------- | ----- |
 | Operation                 | PostJSON | httpapi | httpx |
 | ------------------------- | -------- | ------- | ----- |
 | marshal JSON              |   yes    |   yes~  |  yes  |
@@ -416,7 +414,5 @@ with invocations of `*Overlapped`;
 
 The current implementation of `*Overlapped` may cause us to do more work than needed in
 case the network is really slow and an attempt is slowly fetching the body. In such a case,
-starting a new attempt duplicayes work. Handling this case does not seem straightforward
+starting a new attempt duplicates work. Handling this case does not seem straightforward
 currently, therefore, we will focus on this as part of future work.
-
-
diff --git a/internal/httpclientx/getraw.go b/internal/httpclientx/getraw.go
index a1199dbd9..193df282e 100644
--- a/internal/httpclientx/getraw.go
+++ b/internal/httpclientx/getraw.go
@@ -1,7 +1,7 @@
 package httpclientx
 
 //
-// getraw.go - GET a RAW response.
+// getraw.go - GET a raw response.
 //
 
 import (
diff --git a/internal/httpclientx/overlapped.go b/internal/httpclientx/overlapped.go
index 70a30a6aa..a60e776fd 100644
--- a/internal/httpclientx/overlapped.go
+++ b/internal/httpclientx/overlapped.go
@@ -36,6 +36,7 @@ type Overlapped[Output any] struct {
 	RunFunc func(ctx context.Context, URL string) (Output, error)
 
 	// ScheduleInterval is the MANDATORY scheduling interval.
+	//
 	// This field is typically initialized by [NewOverlappedGetJSON], [NewOverlappedGetRaw],
 	// [NewOverlappedGetXML], or [NewOverlappedPostJSON] to be [OverlappedDefaultScheduleInterval].
 	//