docs: update copy

Signed-off-by: Athan <kgryte@gmail.com>

Author: kgryte

lib/node_modules/@stdlib/math/base/tools/chebyshev-series/README.md

@@ -62,6 +62,8 @@ var v = chebyshevSeries( 1.0, [ 1.0, 0.5 ] );
 // returns 0.75
 ```
 
+The function evaluates Chebyshev polynomials at `x/2`.
+
 #### chebyshevSeries.factory( c )
 
 Uses code generation to in-line coefficients and return a function for evaluating a [Chebyshev series][chebyshev-series] using double-precision floating-point arithmetic.
@@ -74,6 +76,8 @@ var v = evaluate( 1.0 );
 // returns 0.75
 ```
 
+The returned function evaluates Chebyshev polynomials at `x/2`.
+
 </section>
 
 <!-- /.usage -->
@@ -83,7 +87,6 @@ var v = evaluate( 1.0 );
 ## Notes
 
 -   The value at which to evaluate a Chebyshev series is expected to reside on the interval `[-2, 2]`.
--   The function evaluates Chebyshev polynomials at `x/2`.
 -   The coefficients `c` **must be** be ordered in **descending** degree.
 -   For hot code paths in which coefficients are invariant, a compiled function will be more performant than `chebyshevSeries()`.
 -   While code generation can boost performance, its use may be problematic in browser contexts enforcing a strict [content security policy][mdn-csp] (CSP). If running in or targeting an environment with a CSP, avoid using code generation.