diff --git a/plugin/split-open.vim b/autoload/splitopen.vim
similarity index 74%
rename from plugin/split-open.vim
rename to autoload/splitopen.vim
index 43992db..d4f2aac 100644
--- a/plugin/split-open.vim
+++ b/autoload/splitopen.vim
@@ -1,4 +1,4 @@
-function! SplitOpenFile(filename)
+function splitopen#SplitOpenFile(filename)
 	execute("tabedit " . a:filename)
 	let l:file_extension = tolower(fnamemodify(a:filename, ":e"))
 	if l:file_extension == "cpp"
@@ -9,5 +9,3 @@ function! SplitOpenFile(filename)
 		execute("wincmd h")
 	endif
 endfunction
-
-command! -nargs=1 SplitOpen :call SplitOpenFile("<args>")
diff --git a/doc/splitopen.txt b/doc/splitopen.txt
new file mode 100644
index 0000000..66af367
--- /dev/null
+++ b/doc/splitopen.txt
@@ -0,0 +1,34 @@
+*splitopen.txt* opens file-pairs in a new split-window tab
+
+================================================================================
+CONTENTS                                                     *SplitOpenContents*
+
+	1. Usage ..................................|SplitOpenUsage|
+	2. License ................................|SplitOpenLicense|
+	3. Changelog ..............................|SplitOpenChangelog|
+
+================================================================================
+1. Usage                                                        *SplitOpenUsage*
+
+Use 
+
+	:SplitOpen filename 
+
+with a .cpp or .h file as filename to open a new tab containing a vertical split
+with the corresponding header file in the left window and the corresponding
+source file in the right window.
+
+================================================================================
+2. License                                                    *SplitOpenLicense*
+
+SplitOpen is GPL-3.0 licensed. See LICENSE file for more info.
+
+================================================================================
+3. Changelog                                                *SplitOpenChangelog*
+
+v0.0.2
+	* Added delay-loading
+	* Added documentation
+
+v0.0.1
+	* Initial release
diff --git a/plugin/splitopen.vim b/plugin/splitopen.vim
new file mode 100644
index 0000000..9036e30
--- /dev/null
+++ b/plugin/splitopen.vim
@@ -0,0 +1 @@
+command -nargs=1 SplitOpen :call splitopen#SplitOpenFile("<args>")