Fixed lint issues and missing documentation

internal/config/conf_source_findATender.go

@@ -2,17 +2,18 @@ package config
 
 import "reflect"
 
+// JSCKSourceFindATender is the Find a Tender source's configuration key.
 const JSCKSourceFindATender string = "find_a_tender"
 
+// JobSearchConfigSourceFindATender configures fetching from the Find a Tender
+// OCDS API at APIRoot.
 type JobSearchConfigSourceFindATender struct {
 	JobSearchConfigSource
 	APIRoot string `cfg:"api_root" default:"https://www.find-tender.service.gov.uk/api/1.0"`
 }
 
-/*
- * General section functions
- * See related methods in section.go
- */
+// ---------- Section methods (see Section) ----------
+
 func (c JobSearchConfigSourceFindATender) Map() map[string]any { return mapOf(c) }
 
 func (c JobSearchConfigSourceFindATender) Flatten() map[string]any {