Update for redisvl 0.5.1 (#1372)

Co-authored-by: redisdocsapp[bot] <177626021+redisdocsapp[bot]@users.noreply.github.com>

Author: github-actions[bot]

content/integrate/redisvl/api/_index.md

@@ -21,6 +21,8 @@ Reference documentation for the RedisVL API.
 * [Query](query/)
   * [VectorQuery](query/#vectorquery)
   * [VectorRangeQuery](query/#vectorrangequery)
+  * [HybridQuery](query/#hybridquery)
+  * [TextQuery](query/#textquery)
   * [FilterQuery](query/#filterquery)
   * [CountQuery](query/#countquery)
 * [Filter](filter/)
@@ -54,3 +56,6 @@ Reference documentation for the RedisVL API.
   * [Route](router/#route)
   * [Route Match](router/#route-match)
   * [Distance Aggregation Method](router/#distance-aggregation-method)
+* [Threshold Optimizers](threshold_optimizer/)
+  * [CacheThresholdOptimizer](threshold_optimizer/#cachethresholdoptimizer)
+  * [RouterThresholdOptimizer](threshold_optimizer/#routerthresholdoptimizer)

content/integrate/redisvl/api/filter.md

@@ -274,6 +274,17 @@ Return the Redis Query string for the Numeric filter
 * **Return type:**
   str
 
+#### `between(start, end, inclusive='both')`
+
+Operator for searching values between two numeric values.
+
+* **Parameters:**
+  * **start** (*int*)
+  * **end** (*int*)
+  * **inclusive** (*str*)
+* **Return type:**
+  [FilterExpression](#filterexpression)
+
 ## Geo
 
 ### `class Geo(field)`