fix(docs): use correct Ddoc entries (#190)

Signed-off-by: Luís Ferreira <contact@lsferreira.net>

Author: ljmf00

src/containers/hashmap.d

@@ -143,7 +143,7 @@ struct HashMap(K, V, Allocator = Mallocator, alias hashFunction = generateHash!K
 	 *
 	 * Params:
 	 *     key = the key to look up
-	 *     value = the default value
+	 *     defaultValue = the default value
 	 * Returns: the value indexed by `key`, if present, or `defaultValue` otherwise.
 	 */
 	auto get(this This)(K key, lazy V defaultValue)
@@ -163,7 +163,7 @@ struct HashMap(K, V, Allocator = Mallocator, alias hashFunction = generateHash!K
 	 *
 	 * Params:
 	 *     key = the key to look up
-	 *     value = the default value
+	 *     defaultValue = the default value
 	 * Returns: a pointer to the value stored in the HashMap with the given key.
 	 *     The pointer is guaranteed to be valid only until the next HashMap
 	 *     modification.

src/containers/openhashset.d

@@ -53,6 +53,7 @@ struct OpenHashSet(T, Allocator = Mallocator,
 		 *
 		 * Params:
 		 *     initialCapacity = the initial capacity for the hash set
+		 *     allocator = allocator to use for allocations
 		 */
 		this(size_t initialCapacity, Allocator allocator)
 		in

src/containers/treemap.d

@@ -102,7 +102,7 @@ struct TreeMap(K, V, Allocator = Mallocator, alias less = "a < b",
 	 *
 	 * Params:
 	 *     key = the key to look up
-	 *     value = the default value
+	 *     defaultValue = the default value
 	 *
 	 * Returns: A pointer to the existing value, or a pointer to the inserted
 	 *     value.