Fix doc typos.

Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/Documentation/technical/api-run-command.txt b/Documentation/technical/api-run-command.txt
index dfbf9ac..fde3b45 100644
--- a/Documentation/technical/api-run-command.txt
+++ b/Documentation/technical/api-run-command.txt
@@ -49,7 +49,7 @@
 
 `finish_async`::
 
-	Wait for the completeion of an asynchronous function that was
+	Wait for the completion of an asynchronous function that was
 	started with start_async().
 
 
@@ -121,8 +121,8 @@
 . If the string is of the form "VAR=value", i.e. it contains '='
   the variable is added to the child process's environment.
 
-. If the string does not contain '=', it names an environement
-  variable that will be removed from the child process's envionment.
+. If the string does not contain '=', it names an environment
+  variable that will be removed from the child process's environment.
 
 To specify a new initial working directory for the sub-process,
 specify it in the .dir member.