qa/spelling: Add Codespell support (#1121)

* Add codespell support

* Fix paths

* Add HTML files to exclusion list

exchanges/orderbook/linked_list.go

@@ -132,7 +132,7 @@ updates:
 
 // cleanup reduces the max size of the depth length if exceeded. Is used after
 // updates have been applied instead of adhoc, reason being its easier to prune
-// at the end. (cant inline)
+// at the end. (can't inline)
 func (ll *linkedList) cleanup(maxChainLength int, stack *stack) {
 	// Reduces the max length of total linked list chain, occurs after updates
 	// have been implemented as updates can push length out of bounds, if

exchanges/orderbook/orderbook.go

@@ -328,7 +328,7 @@ func (b *Base) Process() error {
 
 // Reverse reverses the order of orderbook items; some bid/asks are
 // returned in either ascending or descending order. One bid or ask slice
-// depending on whats received can be reversed. This is usually faster than
+// depending on what's received can be reversed. This is usually faster than
 // using a sort algorithm as the algorithm could be impeded by a worst case time
 // complexity when elements are shifted as opposed to just swapping element
 // values.

exchanges/orderbook/orderbook_test.go

@@ -387,7 +387,7 @@ func TestProcessOrderbook(t *testing.T) {
 	base.Asset = asset.Spot
 	err = base.Process()
 	if err != nil {
-		t.Error("unexpcted result: ", err)
+		t.Error("unexpected result: ", err)
 	}
 	result, err := Get("ProcessOrderbook", c, asset.Spot)
 	if err != nil {