Add timestamp() to functions overview page (#1255)

Author: JPryce-Aklundh

modules/ROOT/pages/functions/index.adoc

@@ -445,6 +445,10 @@ Replaced by xref:functions/scalar.adoc#functions-elementid[`elementId()`].
 | `startNode(input :: RELATIONSHIP) :: NODE`
 | Returns the start `NODE` of a `RELATIONSHIP`.
 
+1.1+| xref::functions/scalar.adoc#functions-timestamp[`timestamp()`]
+| `timestamp() :: INTEGER`
+| Returns the difference, measured in milliseconds, between the current time and midnight, January 1, 1970 UTC.
+
 1.1+| xref::functions/scalar.adoc#functions-toboolean[`toBoolean()`]
 | `toBoolean(input :: BOOLEAN \| STRING \| INTEGER) :: BOOLEAN`
 | Converts a `BOOLEAN`, `STRING`, or an `INTEGER` value to a `BOOLEAN` value.
@@ -648,12 +652,12 @@ Values of the xref::values-and-types/temporal.adoc[temporal types] -- `DATE`, `Z
 | `datetime(input = DEFAULT_TEMPORAL_ARGUMENT :: ANY) :: ZONED DATETIME`
 | Creates a `ZONED DATETIME` instant.
 
-1.1+| xref::functions/temporal/index.adoc#functions-datetime-timestamp[`datetime.fromepoch()`]
-| `datetime.fromepoch(seconds :: INTEGER \| FLOAT, nanoseconds :: INTEGER \| FLOAT) :: ZONED DATETIME`
+1.1+| xref::functions/temporal/index.adoc#functions-datetime-timestamp[`datetime.fromEpoch()`]
+| `datetime.fromEpoch(seconds :: INTEGER \| FLOAT, nanoseconds :: INTEGER \| FLOAT) :: ZONED DATETIME`
 | Creates a `ZONED DATETIME` given the seconds and nanoseconds since the start of the epoch.
 
-1.1+| xref::functions/temporal/index.adoc#functions-datetime-timestamp[`datetime.fromepochmillis()`]
-| `datetime.fromepochmillis(milliseconds :: INTEGER \| FLOAT) :: ZONED DATETIME`
+1.1+| xref::functions/temporal/index.adoc#functions-datetime-timestamp[`datetime.fromEpochMillis()`]
+| `datetime.fromEpochMillis(milliseconds :: INTEGER \| FLOAT) :: ZONED DATETIME`
 | Creates a `ZONED DATETIME` given the milliseconds since the start of the epoch.
 
 1.1+| xref::functions/temporal/index.adoc#functions-datetime-realtime[`datetime.realtime()`]

modules/ROOT/pages/functions/scalar.adoc

@@ -855,14 +855,12 @@ RETURN startNode(r)
 .Details
 |===
 | *Syntax* 3+| `timestamp()`
-| *Description* 3+| Returns the difference, measured in milliseconds, between the current time and midnight, January 1, 1970 UTC
+| *Description* 3+| Returns the difference, measured in milliseconds, between the current time and midnight, January 1, 1970 UTC.
 | *Returns* 3+| `INTEGER`
 |===
 
 [NOTE]
-====
-It is the equivalent of `datetime().epochMillis`.
-====
+xref:functions/temporal/index.adoc#functions-datetime-fromepochmillis[`datetime.fromEpochMillis()`] is a functional equivalent to `timestamp()`.
 
 .Considerations
 |===

modules/ROOT/pages/functions/temporal/index.adoc

@@ -1318,7 +1318,7 @@ RETURN datetime({epochMillis: 424797300000}) AS theDate
 
 .Details
 |===
-| *Syntax* 3+| `datetime.fromepoch(seconds, nanoseconds)`
+| *Syntax* 3+| `datetime.fromEpoch(seconds, nanoseconds)`
 | *Description* 3+| Creates a `ZONED DATETIME` given the seconds and nanoseconds since the start of the epoch.
 .3+| *Arguments* | *Name* | *Type* | *Description*
 | `seconds` | `INTEGER \| FLOAT` | The number of seconds from the UNIX epoch in the UTC timezone.
@@ -1354,7 +1354,7 @@ RETURN dateTimeFromEpoch
 
 .Details
 |===
-| *Syntax* 3+| `datetime.fromepochmillis(milliseconds)`
+| *Syntax* 3+| `datetime.fromEpochMillis(milliseconds)`
 | *Description* 3+| Creates a `ZONED DATETIME` given the milliseconds since the start of the epoch.
 .2+| *Arguments* | *Name* | *Type* | *Description*
 | `milliseconds` | `INTEGER \| FLOAT` | The number of milliseconds from the UNIX epoch in the UTC timezone.