[mxe] Fix typos and qt.conf

INSTALL

@@ -1046,8 +1046,8 @@ take note of the path where you have installed mxe.
     4.4.2. Building the dependencies
     ================================
 
-Please see the README under ms-windows/mxe for a list of the dependencies that needs to be
-build in mxe before attempting to build QGIS.
+Please see the README under ms-windows/mxe for a list of the dependencies that need to be
+built in mxe before attempting to build QGIS.
 
 
     4.4.3. Cross-Building QGIS
@@ -1059,7 +1059,7 @@ can also change the build and release directory.
     4.4.4. Testing QGIS
     ====================
 
-Copy and unzip the release package ona a Windows machine and launch it!
+Copy and unzip the release package on a Windows machine and launch it!
 
 
   5. Building on MacOS X

ms-windows/mxe/README

@@ -7,8 +7,8 @@ For now, Python bindings cannot be built with mxe.
 Follow the instructions on the website to prepare the mxe environment, you
 will need to build all required dependencies for QGIS.
 
-Note that someof the packages listed below are dependencies of other 
-packages, you will probably not need to build them all explicitely.
+Note that some of the packages listed below are dependencies of other
+packages, you will probably not need to build them all explicitly.
 
 
 armadillo
@@ -117,4 +117,4 @@ tiff
 xz
 zlib
 
-When done, you can edit the build-mxe.sh script to set the path to your mxe installation.
+When done, you can edit the build-mxe.sh script to set the path to your mxe installation.

ms-windows/mxe/build-mxe.sh

@@ -51,6 +51,7 @@ if [[ "$COMMAND" != *"package"* ]]; then
 
   [ -d $BUILD_DIR ] || mkdir $BUILD_DIR
   [ -d $RELEASE_DIR ] || mkdir $RELEASE_DIR
+  [ -d $RELEASE_DIR/qt5 ] || mkdir $RELEASE_DIR/qt5
 
 fi
 
@@ -91,7 +92,7 @@ cp -r $MXE/usr/i686-w64-mingw32.shared/qt5/plugins $RELEASE_DIR/qt5
 
 cat <<__TXT__ > ${RELEASE_DIR}/qt.conf
 [Paths]
-Plugins = ./qt5/plugins
+Plugins = qt5
 __TXT__