fix comments (#8)

Author: danylo-safonov-solid

lib/src/isolation_level.dart

@@ -1,12 +1,12 @@
-/// https://www.postgresql.org/docs/current/transaction-iso.html
+/// [postgresql/Transaction Isolation](https://www.postgresql.org/docs/current/transaction-iso.html).
 enum IsolationLevel {
-  /// [postgresql/Transaction Isolation/Read Committed Isolation Level](https://www.postgresql.org/docs/current/transaction-iso.html#XACT-READ-COMMITTED)
+  /// [postgresql/Transaction Isolation/Read Committed Isolation Level](https://www.postgresql.org/docs/current/transaction-iso.html#XACT-READ-COMMITTED).
   readCommitted,
 
-  /// [postgresql/Transaction Isolation/Repeatable Read Isolation Level](https://www.postgresql.org/docs/current/transaction-iso.html#XACT-REPEATABLE-READ)
+  /// [postgresql/Transaction Isolation/Repeatable Read Isolation Level](https://www.postgresql.org/docs/current/transaction-iso.html#XACT-REPEATABLE-READ).
   repeatableRead,
 
-  /// [postgresql/Transaction Isolation/Serializable Isolation Level](https://www.postgresql.org/docs/current/transaction-iso.html#XACT-SERIALIZABLE)
+  /// [postgresql/Transaction Isolation/Serializable Isolation Level](https://www.postgresql.org/docs/current/transaction-iso.html#XACT-SERIALIZABLE).
   serializable;
 
   /// Parses a string containing an [IsolationLevel] literal into its instance.

lib/src/query_object.dart

@@ -1,7 +1,7 @@
 import 'package:deno_postgres_interop/deno_postgres_interop.dart';
 import 'package:deno_postgres_interop/src/util.dart';
 
-/// [[email protected]/QueryArguments](https://deno.land/x/[email protected]/query/query.ts?s=QueryArguments)
+/// [[email protected]/QueryArguments](https://deno.land/x/[email protected]/query/query.ts?s=QueryArguments).
 typedef QueryArguments = Object;
 
 /// Common method between all Clients.

lib/src/transaction_options.dart

@@ -3,13 +3,13 @@ import 'dart:js_util';
 
 import 'package:deno_postgres_interop/src/isolation_level.dart';
 
-/// [[email protected]/TransactionOptions](https://deno.land/x/[email protected]/mod.ts?s=TransactionOptions)
+/// [[email protected]/TransactionOptions](https://deno.land/x/[email protected]/mod.ts?s=TransactionOptions).
 @JS()
 class TransactionOptions {
-  /// [[email protected]/TransactionOptions/snapshot](https://deno.land/x/[email protected]/mod.ts?s=TransactionOptions)
+  /// [[email protected]/TransactionOptions/snapshot](https://deno.land/x/[email protected]/mod.ts?s=TransactionOptions).
   external String? get snapshot;
 
-  /// [[email protected]/TransactionOptions/constructor](https://deno.land/x/[email protected]/mod.ts?s=TransactionOptions)
+  /// [[email protected]/TransactionOptions/constructor](https://deno.land/x/[email protected]/mod.ts?s=TransactionOptions).
   factory TransactionOptions({
     IsolationLevel? isolationLevel,
     bool? isReadOnly,
@@ -22,15 +22,15 @@ class TransactionOptions {
       }) as TransactionOptions;
 }
 
-/// [[email protected]/TransactionOptions](https://deno.land/x/[email protected]/mod.ts?s=TransactionOptions)
+/// [[email protected]/TransactionOptions](https://deno.land/x/[email protected]/mod.ts?s=TransactionOptions).
 extension TransactionOptionsProps on TransactionOptions {
-  /// [[email protected]/TransactionOptions/isolation_level](https://deno.land/x/[email protected]/mod.ts?s=TransactionOptions)
+  /// [[email protected]/TransactionOptions/isolation_level](https://deno.land/x/[email protected]/mod.ts?s=TransactionOptions).
   IsolationLevel? get isolationLevel {
     final jsProperty = getProperty<String?>(this, 'isolation_level');
 
     return jsProperty == null ? null : IsolationLevel.parse(jsProperty);
   }
 
-  /// [[email protected]/TransactionOptions/read_only](https://deno.land/x/[email protected]/mod.ts?s=TransactionOptions)
+  /// [[email protected]/TransactionOptions/read_only](https://deno.land/x/[email protected]/mod.ts?s=TransactionOptions).
   bool? get isReadOnly => getProperty(this, 'read_only');
 }