docs: backtick parameter references in API comments

std/mem/mem.hon

@@ -26,7 +26,7 @@ raw_alloc proc(
 }
 
 #! resize caller-owned storage with its original allocator and alignment.
-#! on allocation failure with nonzero new_size, original storage remains caller-owned; release the result with raw_free.
+#! on allocation failure with nonzero `new_size`, original storage remains caller-owned; release the result with raw_free.
 raw_realloc proc(
     allocator Allocator,
     memory ?*mut u8,
@@ -54,7 +54,7 @@ eql proc($T type, left, right []T) bool {
 }
 
 #! assign `value` to each slice element, preserving its typed value rather than repeating a byte.
-#! an empty destination is a no-op.
+#! an empty `destination` is a no-op.
 set proc($T type, destination []mut T, value T) void {
     for (0..destination.len) |i| destination[i] = value
 }