help: fix typos

mercurial/help/bundlespec.txt

@@ -74,7 +74,7 Examples
     Produce a ``v2`` bundle using default options, including compression.
 
 ``none-v1``
-    Produce a ``v2`` bundle with no compression.
+    Produce a ``v1`` bundle with no compression.
 
 ``zstd-v2``
     Produce a ``v2`` bundle with zstandard compression using default

mercurial/help/color.txt

@@ -27,9 +27,9 See :hg:`help config.ui.color` for detai
 Mode
 ====
 
-Mercurial can use various system to display color. The supported modes are
+Mercurial can use various systems to display color. The supported modes are
 ``ansi``, ``win32``, and ``terminfo``.  See :hg:`help config.color` for details
-about how to control the mode
+about how to control the mode.
 
 Effects
 =======