docs: update README with pkg-config usage and quick start example

1 files changed, 59 insertions, 20 deletions

diff --git a/README.md b/README.md
index d52de5b..4f2789a 100644
--- a/README.md
+++ b/README.md
@@ -1,30 +1,69 @@
-csv_parser [![Build Status](https://travis-ci.org/tadasv/csv_parser.png?branch=master)](https://travis-ci.org/tadasv/csv_parser)
-==========
+# csv_parser
 
 This library provides a CSV parser to be used in an event loop for processing large amounts of streaming data.
-The parser itself does not use any internal buffers. Whenever field value is available a user's specified callback
-will be invoked with field data and CSV location (row and column).
+The parser itself does not use any internal buffers. Whenever a field value is available, a user's specified callback will be invoked with the field data and its CSV location (row and column).
 
-See ``examples`` for more information.
-
-Building
---------
+## Building & Installation
 
 Prerequisites:
-
-  * gcc
-  * libtool
-  * autoconf
-  * automake
-  * check (to build tests)
+* gcc
+* libtool
+* autoconf
+* automake
+* check (to build tests)
 
 To build and install:
 
-    $ sh autogen.sh
-    $ ./configure
-    $ make
-    $ make install
-  
+```bash
+$ sh autogen.sh
+$ ./configure
+$ make
+$ make install
+```
+
 You can optionally build and run tests:
 
-    $ make test
+```bash
+$ make test
+```
+
+## Usage
+
+Once installed, you can link your own projects against the library using `pkg-config`:
+
+```bash
+$ gcc my_program.c -o my_program $(pkg-config --cflags --libs csv_parser)
+```
+
+### Quick Example
+
+Here is a minimal example demonstrating how to initialize the parser and process data:
+
+```c
+#include <stdio.h>
+#include <string.h>
+#include <csv_parser.h>
+
+int on_field(csv_parser_t *parser, const char *data, size_t length, int row, int col) {
+    printf("Row: %d, Col: %d, Value: %.*s\n", row, col, (int)length, data);
+    return 0;
+}
+
+int main() {
+    csv_parser_t parser;
+    csv_parser_init(&parser);
+
+    csv_parser_settings_t settings = {
+        .delimiter = ',',
+        .field_cb = on_field
+    };
+
+    const char *csv_data = "name,age\nAlice,30\nBob,25";
+    csv_parser_execute(&parser, &settings, csv_data, strlen(csv_data));
+    csv_parser_finish(&parser, &settings);
+
+    return 0;
+}
+```
+
+See the `examples/` directory for more advanced use cases.