Added a semicolon

Missing semicolon was spotted by LPUoO
https://forum.image.sc/t/auto-code-completion-for-ij-macro/11642/147

Author: haesleinhuepf

src/main/resources/doc/ij1macro/functions_extd.html

@@ -15,7 +15,7 @@
 All commands inside an else block are executed if the expression in the earlier if block is false.
 
 <a name="forfilesinafolder"></a>
-<b>filelist = getFileList(directory) <br>for (i = 0; i < lengthOf(filelist); i++) {<br>    if (endsWith(filelist[i], ".tif")) { <br>        open(directory + File.separator + filelist[i]);<br>    } <br>}</b>
+<b>filelist = getFileList(directory); <br>for (i = 0; i < lengthOf(filelist); i++) {<br>    if (endsWith(filelist[i], ".tif")) { <br>        open(directory + File.separator + filelist[i]);<br>    } <br>}</b>
 A for loop which opens all files ending with ".tif" in a folder.
 
 <a name="forslicesinastack"></a>