docs: use conventional verbage

Signed-off-by: Athan <[email protected]>

Author: kgryte

lib/node_modules/@stdlib/complex/float64/base/assert/is-almost-equal-value/README.md

@@ -58,7 +58,7 @@ out = isAlmostEqualValue( z1, z2, 1 );
 // returns true
 ```
 
-The function returns `false` if either input value has a `NaN` real or imaginary part.
+The function returns `false` if either input value has a `NaN` real or imaginary component.
 
 ```javascript
 var Complex128 = require( '@stdlib/complex/float64/ctor' );