Update readme

Author: mrjbq7

README.md

@@ -1,3 +1,34 @@
 # TA-Lib
 
 This is a Zig wrapper for [TA-LIB](http://ta-lib.org).
+
+## Installation
+
+1) Add ta-lib-zig as a dependency in your `build.zig.zon`:
+
+```bash
+zig fetch --save "git+https://github.com/ta-lib/ta-lib-zig#main"
+```
+
+2) In your `build.zig`, add the `httpz` module as a dependency you your program:
+
+```zig
+const ta_lib = b.dependency("ta_lib", .{
+    .target = target,
+    .optimize = optimize,
+});
+
+// the executable from your call to b.addExecutable(...)
+exe.root_module.addImport("ta_lib", ta_lib.module("ta_lib"));
+```
+## Examples
+
+A simple example using the Momentum indicator:
+
+```zig
+const ta = @import("ta_lib");
+
+const prices = [_]f64{ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0 };
+
+const result = try ta.MOM(allocator, &prices, 5);
+```