Add logo.

traktofon · traktofon · commit e89431bd49b5 · 2017-04-06T11:27:59.000+08:00
Add acknowledgment and copyright notice for the punchcard artwork.
diff --git a/LICENSE.md b/LICENSE.md
@@ -20,3 +20,16 @@ The FortranFiles.jl package is licensed under the MIT "Expat" License:
 > OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 > SOFTWARE.
 > 
+
+----
+
+The `FortranFiles.jl` logo (path: docs/src/assets/logo.png)
+has been produced with help of the
+[Virtual Keypunch service](http://www.masswerk.at/keypunch/)
+from [masswerk.at](http://www.masswerk.at/).
+The punchcard artwork is here used by kind permission of Norbert Landsteiner.
+Original copyright notice for the punchcard artwork:
+
+> Copyright 2012 Norbert Landsteiner, mass:werk – media environments.
+> All rights reserved. No copying, no unauthorized providing or hosting.
+
diff --git a/docs/src/assets/logo.png b/docs/src/assets/logo.png
diff --git a/docs/src/index.md b/docs/src/index.md
@@ -33,3 +33,11 @@ Pages = [
 ]
 ```
 
+## Acknowledgments
+
+The `FortranFiles.jl` logo has been produced with help of the
+[Virtual Keypunch service](http://www.masswerk.at/keypunch/)
+from [masswerk.at](http://www.masswerk.at/).
+The punchcard artwork is Copyright 2012 Norbert Landsteiner, mass:werk – media environments.
+It is here used by kind permission.
+
