Ah hm the first link might not work for windows after all.
So this is what I've pieced together on how to do it:
go to planetminecraft.com and download a texture pack to see what the file structure of the texture file should look like (do a search for 1.9.2 textures)
Then download the texture image you made on learntomod. Remember where it's been saved and when you save it save it as the original image name (it should match the original vanilla texture image name exactly. Ex: glowstone)
If you don't already have a .zip compressor software like winrar or 7zip - download that.
create a new folder (in whatever location you want just remember where it is) with whatever name.
Find your .minecraft folder which will have assets < textures folders in it. Run a search for it if you can't find it. Search for %appdata%
In the .minecraft folder, go to Versions and select 1.9.2 then right click the .jar file and open it in 7zip. Drag out the assets folder and the pack.png file and put in the folder you created in step 4. Look for a pack.mcmeta file. If you don't find one...
In a new text document on your computer (you want this file to end in the .txt file extension so use 'Notepad') The file only needs to contain:
"description": "Insert your texture pack description here"
8) So in the folder you created in step 4 you need: the assets folder, the pack.png file and the mcmeta file, Look at the test texture you downloaded from planetminecraft and see what it should look like. If you're changing a bunch of textures at once in the same texture pack you could create the following nest of folders: (assets and everything in the assets folder)
9) Next, replace the existing texture image (ex: glowstone) in your created folder with your new, edited texture image(s) (ex: glowstone). Keep the name(s) the same. Delete the older image(s) so there's only one of the same name in the folder.
10) Right click, select and zip all the files in the folder you created.
11) Open minecraft and press play. Select options then resource packs.
12) Click the open resource packs folder button on the launcher. Then drag the zipped texture pack file you created into the resource packs folder. or drag the zipped file into the 'drag here' area. Click done.
13) When you click the resource packs button again on the options menu you should hopefully now see the newly added texture pack.
14) Then in the options < resource packs menu on your launcher, drag the texture pack from the (left) 'available' section to the (right) 'selected' section. Then press Done.
15) Then in Minecraft, go to your world - if the texture doesn't load you might need to press f3 t