(docs) minor improvements

src/nimcso.nim

@@ -5,25 +5,25 @@
 {.passC: "-flto -ffast-math".} 
 {.passL: "-flto".} 
 
+import std/os
 when defined(nimdoc):
     # Core documentation living in the root of the project.
     include ../docs/docs
-    when existsFile("docs/changelog.nim"):
-        import ../docs/changelog
 
-when defined(nimdoc):
     # Documentation on benchmarks, living alongside them.
     include ../benchmarks/docs
 
-when defined(nimdoc):
     # Documentation on the tests being run, living alongside them.
     include ../tests/docs
 
+    # Changelog generated by the getChangelog script run by the CI Action.
+    when existsFile("docs/changelog.nim"):
+        import ../docs/changelog
+
 # Standard library imports. One per line for easy change tracking.
 import std/strutils
 import std/sets
 import std/times
-import std/os
 import std/sequtils
 import std/random
 import std/heapqueue