Documentation: fix typos / spelling mistakes

Signed-off-by: Mike Ralphson <mike@abacus.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/git-cvsimport.txt

@@ -196,7 +196,7 @@ Problems related to tags:
 
 If you suspect that any of these issues may apply to the repository you
 want to import consider using these alternative tools which proved to be
-more stable in practise:
+more stable in practice:
 
 * cvs2git (part of cvs2svn), `http://cvs2svn.tigris.org`
 * parsecvs, `http://cgit.freedesktop.org/~keithp/parsecvs`

Documentation/git-format-patch.txt

@@ -194,7 +194,7 @@ CONFIGURATION
 -------------
 You can specify extra mail header lines to be added to each message
 in the repository configuration, new defaults for the subject prefix
-and file suffix, control attachements, and number patches when outputting
+and file suffix, control attachments, and number patches when outputting
 more than one.
 
 ------------

contrib/thunderbird-patch-inline/README

@@ -1,12 +1,12 @@
 appp.sh is a script that is supposed to be used together with ExternalEditor
-for Mozilla Thundebird. It will let you include patches inline in e-mails
+for Mozilla Thunderbird. It will let you include patches inline in e-mails
 in an easy way.
 
 Usage:
 - Generate the patch with git format-patch.
 - Start writing a new e-mail in Thunderbird.
 - Press the external editor button (or Ctrl-E) to run appp.sh
-- Select the previosly generated patch file.
+- Select the previously generated patch file.
 - Finish editing the e-mail.
 
 Any text that is entered into the message editor before appp.sh is called

gitweb/README

@@ -206,7 +206,7 @@ not include variables usually directly set during build):
  * $fallback_encoding
    Gitweb assumes this charset if line contains non-UTF-8 characters.
    Fallback decoding is used without error checking, so it can be even
-   'utf-8'. Value mist be valid encodig; see Encoding::Supported(3pm) man
+   'utf-8'. Value must be valid encoding; see Encoding::Supported(3pm) man
    page for a list.   By default 'latin1', aka. 'iso-8859-1'.
  * @diff_opts
    Rename detection options for git-diff and git-diff-tree. By default