Minor conversion documentation with usage example.

src/conversions/axisswap.rs

@@ -1,4 +1,4 @@
-//! Refernce: https://proj.org/en/9.3/operations/conversions/axisswap.html
+//! Refernce: <https://proj.org/en/9.3/operations/conversions/axisswap.html>
 
 use crate::*;
 

src/conversions/mod.rs

@@ -1,3 +1,17 @@
+//! Implemented converions
+//!
+//! Reference: <https://proj.org/en/9.3/operations/conversions>
+//!
+//! Example:
+//! ```
+//! use proj4rs::conversions::Conversion;
+//!
+//! let conversion = Conversion::from_proj_string("+proj=axisswap +order=2,1").unwrap();
+//! let mut points = (1., 2., 0.);
+//! conversion.convert(&mut points).unwrap();
+//! assert_eq!((2., 1., 0.), points);
+//! ```
+
 mod conversion;
 pub use conversion::Conversion;
 

src/lib.rs

@@ -21,7 +21,7 @@
 //!
 //! Note that angular units are in radians, not degrees !
 //!
-//! Radian is natural unit for trigonometric opérations, like proj, proj4rs use radians
+//! Radian is natural unit for trigonometric operations, like proj, proj4rs use radians
 //! for its operation while degrees are mostly used as end user input/output.
 //!
 //! Example: