README: Add Installation instructions

[etc/awesome.git] / doc / index.md

diff --git a/doc/index.md b/doc/index.md
index 6c08c2462b690a709d0c5abbddef5e99427395ba..2b7872dc0e6e2a5f6171c197d6705803daba1038 100644 (file)
--- a/doc/index.md
+++ b/doc/index.md
@@ -8,19 +8,34 @@ The table includes the following sub modules, which have their own documentation
   - `timetable`: Class for date/time objects supporting normalisation
 
 
-## `time ( )`
+### `time ( )`
 
-Returns the current unix timestamp using the most accurate source available.
+Returns the current unix timestamp using the most precise source available.
 See `gettime` for more information.
 
 
-## `get_tz ( timezone_name )`
+### `get_tz ( [timezone_name] )`
 
 Returns a timezone object (see `tzinfo` documentation) for the given `timezone_name`.
-This uses the local zoneinfo database; names are usually of the form `Country/Largest_City`.
+If `timezone_name` is `nil` then the local timezone is used.
+If `timezone_name` is an absolute path, then that `tzinfo` file is used
 
+This uses the local [zoneinfo database](https://www.iana.org/time-zones); 
+names are usually of the form `Country/Largest_City` e.g. "America/New_York".
+Check [wikipedia](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones) for an example list.
 
-## `time_in ( timezone_name [, utc_ts] )`
 
-Returns the current time in seconds since 1970-01-01 0:00:00 in the given timezone
-(as a string, e.g. "America/New_York") at the given UTC time (defaults to now).
+### `time_in ( timezone_name [, utc_ts] )`
+
+Returns the current time in seconds since 1970-01-01 0:00:00 in the given timezone as a string,
+(same semantics as `get_tz`) at the given UTC time (defaults to now).
+
+
+## As in the C standard library
+
+### `gmtime ( ts )`
+
+### `localtime ( ts )`
+
+### `ctime ( ts )`
+