Update README.md and usage notes

README.md

@@ -4,12 +4,12 @@ GEOSTAT
 Tools for computing various statistics related to Geocaching/Opencaching
 ------------------------------------------------------------------------
 
-### Sample web interface
+# Sample web interface
 
 A sample web interface to play with the tool is available at http://tomaszg.pl/geo/.
 
 
-### Usage
+# Usage
 
 The main tool is called `geostat`. It is able to access `opencaching.pl` via `OKAPI` or from local database dump maintained by `geodb`. It can also partially read `GPX` files, e.g. exported from [c:geo](https://www.cgeo.org/). It produces various statistics (either as text output with `geostat_cli`, or in a HTML form with `geostat`) and renders a heat map of found/not found caches in a selected region. HTML output requires a style sheet. Sample one is included as `geo.css`.
 
@@ -42,6 +42,9 @@ Generate HTML stats from Opencaching data or GPX files.
 	-h		display this help screen
 ```
 
+# Other tools
+
+## geodb
 There is a helper program `geodb` which manages local SQLite database. It can initialize the database from full data dump or update it according to changelogs grabbed from OKAPI.
 
 ```
@@ -52,7 +55,16 @@ Manage local Opencaching database.
 	-h	display this help screen
 ```
 
-### Installation
+## geofriends
+Another tools is `geofriends`. It generates stats for a pair of users regarding their common caching activities.
+
+```
+Usage: geofriends nick1 nick2
+Generate HTML stats for user caching intersection from Opencaching data.
+```
+
+
+# Installation
 
 To compile it requires:
 
@@ -67,7 +79,7 @@ To compile it requires:
 To build the project copy `config_user_example.h` to `config_user.h` and fill it out (at least API key is needed). Then
 run `meson build; cd build; ninja`. You might need to set `CXX` variable to point to a correct compiler.
 
-### Credits
+# Credits
 
 * Maps of Poland `Poland.png` and `Poland_big.png` come from https://pl.wikipedia.org/wiki/Plik:Poland_location_map.svg and are licensed under CC-BY-SA and GNU FDL.
 

geofriends.cpp

@@ -9,7 +9,7 @@
 #include <unistd.h>
 
 void show_usage() {
-	std::cout << "Usage: geofriends [options] nick1 nick2\n";
+	std::cout << "Usage: geofriends nick1 nick2\n";
 	std::cout << "Generate HTML stats for user caching intersection from Opencaching data.\n\n";
 	std::exit(EXIT_FAILURE);
 }