Add highlighting to readme

CHANGELOG.md

@@ -6,6 +6,8 @@
 
 ### Changed
 
+ * Highlighing in documentation
+
 ### Fixed
 
 ### Deprecated

README.md

@@ -27,7 +27,7 @@ Add the `extern crate` definition to your `main.rs` or `lib.rs`:
 extern crate evalexpr;
 ```
 
-Then you can use `evalexpr` to evaluate expressions like this:
+Then you can use `evalexpr` to **evaluate expressions** like this:
 
 ```rust
 use evalexpr::*;
@@ -42,7 +42,7 @@ assert_eq!(eval("1.0 + 2 * 3"), Ok(Value::from(7.0)));
 assert_eq!(eval("true && 4 > 2"), Ok(Value::from(true)));
 ```
 
-And you can use variables and functions in expressions like this:
+And you can use **variables** and **functions** in expressions like this:
 
 ```rust
 use evalexpr::*;
@@ -79,7 +79,7 @@ assert_eq!(eval_boolean_with_configuration("five + 8 > f(twelve)", &configuratio
 assert_eq!(eval_with_configuration("avg(2, 4) == 3", &configuration), Ok(Value::from(true)));
 ```
 
-You can also precompile expressions like this:
+You can also **precompile** expressions like this:
 
 ```rust
 use evalexpr::*;

src/lib.rs

@@ -14,7 +14,7 @@
 //! extern crate evalexpr;
 //! ```
 //!
-//! Then you can use `evalexpr` to evaluate expressions like this:
+//! Then you can use `evalexpr` to **evaluate expressions** like this:
 //!
 //! ```rust
 //! use evalexpr::*;
@@ -29,7 +29,7 @@
 //! assert_eq!(eval("true && 4 > 2"), Ok(Value::from(true)));
 //! ```
 //!
-//! And you can use variables and functions in expressions like this:
+//! And you can use **variables** and **functions** in expressions like this:
 //!
 //! ```rust
 //! use evalexpr::*;
@@ -66,7 +66,7 @@
 //! assert_eq!(eval_with_configuration("avg(2, 4) == 3", &configuration), Ok(Value::from(true)));
 //! ```
 //!
-//! You can also precompile expressions like this:
+//! You can also **precompile** expressions like this:
 //!
 //! ```rust
 //! use evalexpr::*;