Bump solidity-docgen from 0.4.1 to 0.5.3 (#2221)

* Bump solidity-docgen from 0.4.1 to 0.5.3

Bumps solidity-docgen from 0.4.1 to 0.5.3.

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

* Update prepare-docs.sh

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
Co-authored-by: Francisco Giordano <frangio.1@gmail.com>

package.json

@@ -66,7 +66,7 @@
     "mocha": "^7.1.2",
     "solhint": "^3.0.0",
     "solidity-coverage": "github:rotcivegaf/solidity-coverage#5875f5b7bc74d447f3312c9c0e9fc7814b482477",
-    "solidity-docgen": "^0.4.1"
+    "solidity-docgen": "^0.5.3"
   },
   "dependencies": {}
 }

scripts/prepare-docs.sh

@@ -9,5 +9,5 @@ if [ ! -d node_modules ]; then
 fi
 
 rm -rf "$OUTDIR"
-solidity-docgen -t docs -o "$OUTDIR" -e contracts/mocks,contracts/examples
+solidity-docgen -t docs -o "$OUTDIR" -e contracts/mocks,contracts/examples --output-structure readmes
 node scripts/gen-nav.js "$OUTDIR" > "$OUTDIR/../nav.adoc"