cite instruction in docs

Author: dirkroorda

docs/Code/Stats.md

@@ -1,13 +1,13 @@
-cloc|github.com/AlDanial/cloc v 1.74  T=2.20 s (29.5 files/s, 8970.8 lines/s)
+cloc|github.com/AlDanial/cloc v 1.74  T=2.41 s (27.0 files/s, 8204.9 lines/s)
 --- | ---
 
 Language|files|blank|comment|code
 :-------|-------:|-------:|-------:|-------:
 Python|32|1182|1235|8229
-Markdown|27|2273|0|6139
+Markdown|27|2273|0|6140
 CSS|2|17|4|392
 JavaScript|2|11|1|213
 YAML|1|4|0|58
 Bourne Shell|1|0|0|1
 --------|--------|--------|--------|--------
-SUM:|65|3487|1240|15032
+SUM:|65|3487|1240|15033

docs/Code/StatsApps.md

@@ -1,4 +1,4 @@
-cloc|github.com/AlDanial/cloc v 1.74  T=0.10 s (58.7 files/s, 21179.1 lines/s)
+cloc|github.com/AlDanial/cloc v 1.74  T=0.10 s (58.4 files/s, 21074.6 lines/s)
 --- | ---
 
 Language|files|blank|comment|code

docs/Code/StatsBase.md

@@ -1,4 +1,4 @@
-cloc|github.com/AlDanial/cloc v 1.74  T=0.12 s (101.9 files/s, 30988.3 lines/s)
+cloc|github.com/AlDanial/cloc v 1.74  T=0.11 s (106.6 files/s, 32395.9 lines/s)
 --- | ---
 
 Language|files|blank|comment|code

docs/Code/StatsSearch.md

@@ -1,4 +1,4 @@
-cloc|github.com/AlDanial/cloc v 1.74  T=0.09 s (102.6 files/s, 36613.5 lines/s)
+cloc|github.com/AlDanial/cloc v 1.74  T=0.09 s (101.7 files/s, 36266.9 lines/s)
 --- | ---
 
 Language|files|blank|comment|code

docs/Code/StatsServer.md

@@ -1,4 +1,4 @@
-cloc|github.com/AlDanial/cloc v 1.74  T=0.12 s (77.7 files/s, 16766.7 lines/s)
+cloc|github.com/AlDanial/cloc v 1.74  T=0.10 s (86.0 files/s, 18543.4 lines/s)
 --- | ---
 
 Language|files|blank|comment|code

docs/index.md

@@ -6,7 +6,8 @@
 ## About
 
 Before diving head-on into Text-Fabric, you might want to read a bit more about
-what it is and where it came from.
+what it is and where it came from. And after it, if you want to cite it, use this
+[DOI: 10.5281/zenodo.592193](https://doi.org/10.5281/zenodo.592193).
 
 ??? abstract "Intro"
     Text-Fabric is several things: