Minor styling changes

Sources/SwiftNLP/1. Data Collection/DeterministicSampleVectorIndex.swift

@@ -57,8 +57,8 @@ public struct DeterministicSampleVectorIndex<Vector: Collection & Codable> where
         let convertedVector: [Double] = vector.map{ Double($0) }
         if let metricVector = convertedVector as? CartesianDistanceMetric<Vector>.Vector {
             /// base.insert will returns an unused 'Key' type but will implicitly modify base
-            let key = base.insert(metricVector, using: &srng)
-            // let key = base.insert(metricVector, using: &drng)
+            let _ = base.insert(metricVector, using: &srng)
+            // let _ = base.insert(metricVector, using: &drng)
         } else {
             fatalError("Unable to get metric vector")
         }

Tests/SwiftNLPTests/2. Encoding/HNSWTests.swift

@@ -84,7 +84,7 @@ final class HNSWTests: XCTestCase {
                 corpus.addUntokenizedDocument(text)
             }
         }
-        //print("Loaded \(corpus.encodedDocuments.count) documents.")
+        //print("Loaded \(corpus.encodedDocuments.base.vectors.count) documents.")
         XCTAssert(corpus.encodedDocuments.base.vectors.count == 17999)
     }