docs: replace graph() with make_graph() in examples

[maelle]

Fix #736

[codecov]

Codecov Report

Merging #738 (9dfb4c8) into main (33c3376) will decrease coverage by 0.01%.
The diff coverage is 83.33%.

❗ Current head 9dfb4c8 differs from pull request most recent head 9a53039. Consider uploading reports for the commit 9a53039 to get more accurate results

@@            Coverage Diff             @@
##             main     #738      +/-   ##
==========================================
- Coverage   53.93%   53.93%   -0.01%     
==========================================
  Files         357      357              
  Lines       73282    73281       -1     
==========================================
- Hits        39526    39523       -3     
- Misses      33756    33758       +2     

Impacted Files	Coverage Δ
R/attributes.R	78.00% <ø> (ø)
R/centrality.R	74.75% <ø> (ø)
R/centralization.R	82.60% <ø> (ø)
R/conversion.R	73.91% <ø> (ø)
R/flow.R	79.13% <ø> (ø)
R/incidence.R	24.29% <0.00%> (ø)
R/iterators.R	91.68% <ø> (ø)
R/plot.common.R	64.63% <ø> (ø)
R/simple.R	85.71% <ø> (ø)
R/structural.properties.R	85.96% <ø> (ø)
... and 4 more

... and 2 files with indirect coverage changes

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[ntamas]

LGTM. 👍

[maelle]

what's the policy on merging, does this need another review? 😇

[krlmlr]

I'll take a closer look at my igraph inbox later today. 🌋

[ntamas]

No, it's just unclear whether I can pull the trigger on it or we are waiting for @krlmlr :)

[krlmlr]

Thanks!