docs: fix descriptions

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---

Author: kgryte

lib/node_modules/@stdlib/blas/ext/index-of/docs/types/index.d.ts

@@ -74,7 +74,7 @@ interface Options extends BaseOptions {
 */
 interface IndexOf {
 	/**
-	* Returns the first index of specified search element along one or more ndarray dimensions.
+	* Returns the first index of a specified search element along an ndarray dimension.
 	*
 	* @param x - input ndarray
 	* @param searchElement - search element
@@ -95,7 +95,7 @@ interface IndexOf {
 	<T = unknown>( x: InputArray<T>, searchElement: SearchElement<T>, options?: Options ): OutputArray;
 
 	/**
-	* Returns the first index of specified search element along one or more ndarray dimensions.
+	* Returns the first index of a specified search element along an ndarray dimension.
 	*
 	* @param x - input ndarray
 	* @param searchElement - search element
@@ -117,7 +117,7 @@ interface IndexOf {
 	<T = unknown>( x: InputArray<T>, searchElement: SearchElement<T>, fromIndex: FromIndex, options?: Options ): OutputArray;
 
 	/**
-	* Returns the first index of a specified search element along one or more ndarray dimensions and assigns results to a provided output ndarray.
+	* Returns the first index of a specified search element along an ndarray dimension and assigns results to a provided output ndarray.
 	*
 	* @param x - input ndarray
 	* @param searchElement - search element
@@ -146,7 +146,7 @@ interface IndexOf {
 	assign<T = unknown, U extends OutputArray = OutputArray>( x: InputArray<T>, searchElement: SearchElement<T>, out: U, options?: BaseOptions ): U;
 
 	/**
-	* Returns the first index of a specified search element along one or more ndarray dimensions and assigns results to a provided output ndarray.
+	* Returns the first index of a specified search element along an ndarray dimension and assigns results to a provided output ndarray.
 	*
 	* @param x - input ndarray
 	* @param searchElement - search element
@@ -177,7 +177,7 @@ interface IndexOf {
 }
 
 /**
-* Returns the first index of a specified search element along one or more ndarray dimensions.
+* Returns the first index of a specified search element along an ndarray dimension.
 *
 * @param x - input ndarray
 * @param searchElement - search element