docs: restore removed copy

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

Author: kgryte

lib/node_modules/@stdlib/assert/is-almost-equal/README.md

@@ -71,6 +71,21 @@ bool = isAlmostEqual( z1, z2, 1 );
 // returns false
 ```
 
+The function does not distinguish between `-0` and `+0`, treating them as equal.
+
+```javascript
+var Complex128 = require( '@stdlib/complex/float64/ctor' );
+
+var bool = isAlmostEqual( 0.0, -0.0, 0 );
+// returns true
+
+var z1 = new Complex128( 0.0, 0.0 );
+var z2 = new Complex128( -0.0, -0.0 );
+
+bool = isAlmostEqual( z1, z2, 0 );
+// returns true
+```
+
 </section>
 
 <!-- /.usage -->