Remove reference to homalg and CAP tutorials

_data/examples.yml

@@ -191,42 +191,3 @@
 #  author: Johannes Flake
 #  thumbnail: oscar.png
 #  language: julia
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-#- title: "Coherent sheaves on P1"
-#  repository: homalg-project/CapAndHomalgNotebooks
-#  filename: CohP1
-#  author: Mohamed Barakat
-#  thumbnail: Logo_CAP.jpg
-#  language: CAP using homalg and Singular
-
-#- title: "Uniform matrix product states"
-#  repository: homalg-project/CapAndHomalgNotebooks
-#  filename: uMPS(2,2,4)_0dim
-#  author: Mohamed Barakat
-#  thumbnail: Logo_CAP.jpg
-#  language: CAP using homalg and Singular
-
-#- title: "A divisionally free not inductively free arrangement with a minimal number of hyperplanes"
-#  repository: homalg-project/CapAndHomalgNotebooks
-#  filename: DivFreeNotIndFree
-#  author: Mohamed Barakat and Lukas Kühne
-#  thumbnail: Logo_CAP.jpg
-#  language: CAP using homalg and Singular
-
-#- title: "Tilting equivalence"
-#  repository: homalg-project/CapAndHomalgNotebooks
-#  filename: TiltingEquivalence
-#  author: Kamal Saleh and Mohamed Barakat
-#  thumbnail: Logo_CAP.jpg
-#  language: CAP using homalg and Singular
-
-#- title: "Computations in the symmetric algebra internal to the tensor category of finite dimensional representations of Sym(4)"
-#  repository: homalg-project/CapAndHomalgNotebooks
-#  filename: SymmetricAlgebraInternalToS4rep
-#  author: Mohamed Barakat and Fabian Zickgraf
-#  thumbnail: Logo_CAP.jpg
-#  language: CAP using homalg and Singular