Merge branch '166-check-links' into 'preview'

Resolve "Check links"

Closes #166

See merge request !418

doc.zih.tu-dresden.de/docs/software/math_libraries.md

@@ -59,7 +59,7 @@ libraries tuned specifically for AMD EPYC processor family. AOCL offers linear a
  as well as
  [AMD Random Number Generator Library](https://developer.amd.com/amd-cpu-libraries/rng-library/)
  and
- [AMD Secure RNG Libraary](https://developer.amd.com/amd-cpu-libraries/rng-library/#securerng).
+ [AMD Secure RNG Library](https://developer.amd.com/amd-cpu-libraries/rng-library/#securerng).
 
 ## Math Kernel Library (MKL)
 

doc.zih.tu-dresden.de/util/grep-forbidden-patterns.sh

@@ -46,6 +46,9 @@ i	^[ |]*|$
 Avoid spaces at end of lines.
 doc.zih.tu-dresden.de/docs/accessibility.md
 i	[[:space:]]$
+Internal links should not contain \"/#\".
+
+i	(.*/#.*)	(http
 When referencing partitions, put keyword \"partition\" in front of partition name, e. g. \"partition ml\", not \"ml partition\".
 doc.zih.tu-dresden.de/docs/contrib/content_rules.md
 i	\(alpha\|ml\|haswell\|romeo\|gpu\|smp\|julia\|hpdlf\|scs5\|dcv\)-\?\(interactive\)\?[^a-z]*partition