Merge pull request #3040 from ivan-mashonskiy/patch-1

Fix typo

_overviews/collections-2.13/maps.md

@@ -64,7 +64,7 @@ Mutable maps support in addition the operations summarized in the following tabl
 |  **Additions and Updates:** |                                               |
 |  `ms(k) = v`                |(Or, written out, `ms.update(k, v)`). Adds mapping from key `k` to value `v` to map ms as a side effect, overwriting any previous mapping of `k`.|
 |  `ms.addOne(k -> v)`<br>or `ms += (k -> v)`     |Adds mapping from key `k` to value `v` to map `ms` as a side effect and returns `ms` itself.|
-|  `ms.addAll(xvs)`<br>or `ms ++= kvs`             |Adds all mappings in `kvs` to `ms` as a side effect and returns `ms` itself.|
+|  `ms.addAll(kvs)`<br>or `ms ++= kvs`             |Adds all mappings in `kvs` to `ms` as a side effect and returns `ms` itself.|
 |  `ms.put(k, v)`             |Adds mapping from key `k` to value `v` to `ms` and returns any value previously associated with `k` as an option.|
 |  `ms.getOrElseUpdate(k, d)` |If key `k` is defined in map `ms`, return its associated value. Otherwise, update `ms` with the mapping `k -> d` and return `d`.|
 |  **Removals:**              |                                                |

_overviews/collections-2.13/seqs.md

@@ -103,7 +103,7 @@ Two often used implementations of buffers are `ListBuffer` and `ArrayBuffer`.  A
 | ------                   | ------                                                           |
 |  **Additions:**          |                                                                  |
 |  `buf.append(x)`<br>or `buf += x`              |Appends element `x` to buffer, and returns `buf` itself as result.|
-|  `buf.appendAll(xs)`<br>or`buf ++= xs`         |Appends all elements in `xs` to buffer.|
+|  `buf.appendAll(xs)`<br>or `buf ++= xs`        |Appends all elements in `xs` to buffer.|
 |  `buf.prepend(x)`<br>or `x +=: buf`            |Prepends element `x` to buffer.|
 |  `buf.prependAll(xs)`<br>or `xs ++=: buf`      |Prepends all elements in `xs` to buffer.|
 |  `buf.insert(i, x)`      |Inserts element `x` at index `i` in buffer.|