updated instructions on directory structure

install.md

@@ -40,23 +40,25 @@ the files on your computer.
 ### Clone from Git repository ###
 
 Create folder `tpcclib` for source codes and building, and clone the sources of a specific 
-TPCCLIB release:
+TPCCLIB release into a new folder `src`:
 
 ~~~~~~~~~~~~~~~~~~
 cd
 mkdir tpcclib
 cd tpcclib
-git clone --depth 1 --branch v0.7.4 https://gitlab.utu.fi/vesoik/tpcclib.git
+git clone --depth 1 --branch v0.7.4 https://gitlab.utu.fi/vesoik/tpcclib.git src
 ~~~~~~~~~~~~~~~~~~
 
 Change the version number in the `--branch` option to the latest release. If you want to build 
 the most recent source code versions (not recommended for production use), then leave out 
 the option `--branch v0.7.4`. If you are a programmer and plan to edit the source codes and 
-commit the changes, you should leave out both options.
+commit the changes, you should leave out both options, and use your UTU user name:
+
+    git clone https://username@gitlab.utu.fi/vesoik/tpcclib.git src
 
 ## Compilation ##
 
-The Git commit above wrote the source codes into folder ~/tpcclib/tpcclib/. 
+The Git commit above wrote the source codes into folder ~/tpcclib/src/. 
 Create the build path(s), **not under the source path**, and not under network folders, or 
 shared folders in virtual machine, because that would lead to "Clock skew detected" warnings
 and incomplete or failed compilation.
@@ -65,20 +67,20 @@ If you are building executables for the current operating system only, then the
 directory structure is this:
 
     tpcclib
-    ├───tpcclib
+    ├───src
     └───build
 
 If you will build executables for Linux and Windows and/or both 32- and 64-bit systems, then
 create separate build folder for each system:
 
     tpcclib
-    ├───tpcclib
+    ├───src
     ├───linux
     ├───win64
     └───win32
 
 Move into the build directory, and then run `cmake` command, specifying the source path 
-(in this example `../tpcclib`), and optionally (-G) the make system generator 
+(in this example `../src`), and optionally (-G) the make system generator 
 (run `cmake --help` to see available options). See below for [examples](#examples).
 
 Then run `make` (in Linux, macOS, and Git for Windows bash shell with GCC):
@@ -147,7 +149,7 @@ Create [Doxygen](http://doxygen.org) documentation for the library, if necessary
 to the source code directory, and then executing `doxygen` in each of the main source folders: 
     
 ~~~~~~~~~~~~~~~~~~
-cd ~/tpcclib/tpcclib
+cd ~/tpcclib/src
 doxygen
 cd v1
 doxygen
@@ -168,7 +170,7 @@ for which you have built the programs:
 
     tpcclib
     ├───packages
-    ├───tpcclib
+    ├───src
     ├───tpcclib-doc
     ├───linux
     │   ├───bin
@@ -179,8 +181,8 @@ for which you have built the programs:
         └───bin
 
 Distributable source and binary packages will be located in `packages` folder,
-library documentation in `tpcclib-doc` folder, usage information for binaries
-in `win64/doc` and compiled binaries in the `bin` folder(s).
+library documentation in `tpcclib-doc` folder, usage information for binaries in `win64/doc`, and 
+compiled binaries in the `bin` folder(s).
 
 
 <a name="examples"></a>
@@ -191,7 +193,7 @@ in `win64/doc` and compiled binaries in the `bin` folder(s).
 
 ~~~~~~~~~~~~~~~~~~
 cd ~/tpcclib/build
-cmake ../tpcclib
+cmake ../src
 make -j 2 install
 ctest --output-on-failure --parallel 2
 make -j 2 package package_source
@@ -207,7 +209,7 @@ Using GCC from [Equation Solution](http://www.equation.com/):
 
 ~~~~~~~~~~~~~~~~~~
 cd ~/tpcclib/build
-cmake -G "MSYS Makefiles" ../tpcclib
+cmake -G "MSYS Makefiles" ../src
 make -j 2 install
 ctest --output-on-failure --parallel 2
 make -j 2 package
@@ -221,7 +223,7 @@ a 64-bit platform. To make distributions for 32-bit Windows in a 64-bit platform
 
 ~~~~~~~~~~~~~~~~~~
 cd ~/tpcclib/win32
-cmake -G "MSYS Makefiles" -D CMAKE_C_FLAGS:STRING="-m32" ../tpcclib
+cmake -G "MSYS Makefiles" -D CMAKE_C_FLAGS:STRING="-m32" ../src
 make install
 ~~~~~~~~~~~~~~~~~~
 
@@ -236,7 +238,7 @@ it may help to include link option -s to remove all symbol table and relocation
 information from (temporary) executables. For example:
 
 ~~~~~~~~~~~~~~~~~~
-cmake -G "MSYS Makefiles" -D CMAKE_C_FLAGS:STRING="-m32 -s" ../tpcclib
+cmake -G "MSYS Makefiles" -D CMAKE_C_FLAGS:STRING="-m32 -s" ../src
 ~~~~~~~~~~~~~~~~~~