5 files changed, 37 insertions, 62 deletions
diff --git a/docs/reference/src/api/util/index.md b/docs/reference/src/api/util/index.md
index a830d6bd..2ca0bc0b 100644
--- a/docs/reference/src/api/util/index.md
+++ b/docs/reference/src/api/util/index.md
@@ -1 +1,9 @@
 # General Purpose Functions
+
+# See Also
+
+[nng_alloc()](nng_alloc.md),
+[nng_clock()](nng_clock.md),
+[nng_free()](nng_free.md),
+[nng_random()](nng_random.md),
+[nng_version()](nng_version.md)
diff --git a/docs/reference/src/api/util/nng_clock.md b/docs/reference/src/api/util/nng_clock.md
index 3653bfa2..2b42b158 100644
--- a/docs/reference/src/api/util/nng_clock.md
+++ b/docs/reference/src/api/util/nng_clock.md
@@ -29,7 +29,8 @@ very fine-grained values.
 > but different programs may have different references.
 
 This function is intended to help with setting appropriate
-timeouts using [`nng_cv_until()`](../threads/nng_cv_until.md).
+timeouts using [`nng_cv_until()`](../threads/nng_cv_until.md)
+or [`nng_aio_set_expire()`](../aio/nng_aio_set_timeout.md).
 
 ## RETURN VALUES
 
diff --git a/docs/reference/src/api/util/nng_random.md b/docs/reference/src/api/util/nng_random.md
index 3f8ac39e..b358dfb6 100644
--- a/docs/reference/src/api/util/nng_random.md
+++ b/docs/reference/src/api/util/nng_random.md
@@ -1,45 +1,26 @@
-= nng_random(3supp)
-//
-// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
-// Copyright 2018 Capitar IT Group BV <info@capitar.com>
-//
-// This document is supplied under the terms of the MIT License, a
-// copy of which should be located in the distribution where this
-// file was obtained (LICENSE.txt).  A copy of the license may also be
-// found online at https://opensource.org/licenses/MIT.
-//
+# nng_random()
 
-== NAME
+## NAME
 
-nng_random - get random number
+nng_random --- get random number
 
-== SYNOPSIS
+## SYNOPSIS
 
-[source, c]
-----
+```c
 #include <nng/nng.h>
 #include <nng/supplemental/util/platform.h>
 
 uint32_t nng_random(void);
-----
+```
 
-== DESCRIPTION
+## DESCRIPTION
 
 The `nng_random()` returns a random number.
 The value returned is suitable for use with cryptographic functions such as
 key generation.
-The value is obtained using platform specific cryptographically strong random
+The value is obtained using platform-specific cryptographically strong random
 number facilities when available.
 
-== RETURN VALUES
+## RETURN VALUES
 
-Random number.
-
-== ERRORS
-
-None.
-
-== SEE ALSO
-
-[.text-left]
-xref:nng.7.adoc[nng(7)]
+Returns a random 32-bit value.
diff --git a/docs/reference/src/api/util/nng_strerror.md b/docs/reference/src/api/util/nng_strerror.md
index 145fd0bc..3315651a 100644
--- a/docs/reference/src/api/util/nng_strerror.md
+++ b/docs/reference/src/api/util/nng_strerror.md
@@ -1,48 +1,33 @@
-= nng_strerror(3)
-//
-// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
-// Copyright 2018 Capitar IT Group BV <info@capitar.com>
-//
-// This document is supplied under the terms of the MIT License, a
-// copy of which should be located in the distribution where this
-// file was obtained (LICENSE.txt).  A copy of the license may also be
-// found online at https://opensource.org/licenses/MIT.
-//
+# nng_strerror()
 
-== NAME
+## NAME
 
-nng_strerror - return an error description
+nng_strerror --- return an error description
 
-== SYNOPSIS
+## SYNOPSIS
 
-[source, c]
-----
+```c
 #include <nng/nng.h>
 
 const char * nng_strerror(int err);
-----
+```
 
-== DESCRIPTION
+## DESCRIPTION
 
 The `nng_strerror()` returns the human-readable description of the
 given error in `err`.
 
-NOTE: The returned error message is provided in US English, but in the
+The returned error message is provided in US English, but in the
 future locale-specific strings may be presented instead.
 
-NOTE: The specific strings associated with specific error messages are
-subject to change.
-Therefore applications must not depend on the message,
-but may use them verbatim when supplying information to end-users, such
-as in diagnostic messages or log entries.
+> [!NOTE]
+> The specific strings associated with specific error messages are
+> subject to change.
+> Therefore applications must not depend on the message,
+> but may use them verbatim when supplying information to end-users, such
+> as in diagnostic messages or log entries.
 
-== RETURN VALUES
+## RETURN VALUES
 
 This function returns the human-readable error message, terminated
 by a `NUL` byte.
-
-== SEE ALSO
-
-[.text-left]
-xref:libnng.3.adoc[libnng(3)],
-xref:nng.7.adoc[nng(7)]
diff --git a/docs/reference/src/api/util/nng_version.md b/docs/reference/src/api/util/nng_version.md
index 7cc10bdf..20ae094b 100644
--- a/docs/reference/src/api/util/nng_version.md
+++ b/docs/reference/src/api/util/nng_version.md
@@ -2,7 +2,7 @@
 
 ## NAME
 
-nng_version - report library version
+nng_version --- report library version
 
 ## SYNOPSIS
 
@@ -33,4 +33,4 @@ manner depending upon the link options and how the library is built.)
 
 ## RETURN VALUES
 
-Null-terminated string containing the library version number.
+`NUL`-terminated string containing the library version number.