Typo fixes
diff --git a/Doc/lib/libpopen2.tex b/Doc/lib/libpopen2.tex
index 41a7e8e..577f6f1 100644
--- a/Doc/lib/libpopen2.tex
+++ b/Doc/lib/libpopen2.tex
@@ -57,7 +57,7 @@
instances are created using the \function{popen2()} and
\function{popen3()} factory functions described above.
-If not using one off the helper functions to create \class{Popen3}
+If not using one of the helper functions to create \class{Popen3}
objects, the parameter \var{cmd} is the shell command to execute in a
sub-process. The \var{capturestderr} flag, if true, specifies that
the object should capture standard error output of the child process.
@@ -129,7 +129,7 @@
When reading output from a child process that writes a lot of data to
standard error while the parent is reading from the child's standard
-out, a deadlock can occur. A similar situation can occur with other
+output, a deadlock can occur. A similar situation can occur with other
combinations of reads and writes. The essential factors are that more
than \constant{_PC_PIPE_BUF} bytes are being written by one process in
a blocking fashion, while the other process is reading from the other