Merge #1416: doc: Align documented scripts with CI ones

b0f7bfe doc: Do not mention soname in CHANGELOG.md "ABI Compatibility" section (Hennadii Stepanov)
bd9d98d doc: Align documented scripts with CI ones (Hennadii Stepanov)

Pull request description:

ACKs for top commit:
  sipa:
    ACK b0f7bfe
  real-or-random:
    ACK b0f7bfe

Tree-SHA512: 99cbc065cf9610923a863bac34e607ce4f2b1fe71fc32cb96fed33203e42c914ef29924cd9eade89859f63fdd95ffb214c5a2a1066bfca9c202e85aec5f7c16e

doc/release-process.md

@@ -24,14 +24,14 @@ Perform these checks before creating a release:
 2. Check installation with autotools:
 ```shell
 dir=$(mktemp -d)
-./autogen.sh && ./configure --prefix=$dir && make clean && make install && ls -l $dir/include $dir/lib
+./autogen.sh && ./configure --prefix=$dir && make clean && make install && ls -RlAh $dir
 gcc -o ecdsa examples/ecdsa.c $(PKG_CONFIG_PATH=$dir/lib/pkgconfig pkg-config --cflags --libs libsecp256k1) -Wl,-rpath,"$dir/lib" && ./ecdsa
 ```
 3. Check installation with CMake:
 ```shell
 dir=$(mktemp -d)
 build=$(mktemp -d)
-cmake -B $build -DCMAKE_INSTALL_PREFIX=$dir && cmake --build $build --target install && ls -l $dir/include $dir/lib*
+cmake -B $build -DCMAKE_INSTALL_PREFIX=$dir && cmake --build $build --target install && ls -RlAh $dir
 gcc -o ecdsa examples/ecdsa.c -I $dir/include -L $dir/lib*/ -l secp256k1 -Wl,-rpath,"$dir/lib",-rpath,"$dir/lib64" && ./ecdsa
 ```
 
@@ -41,7 +41,7 @@ gcc -o ecdsa examples/ecdsa.c -I $dir/include -L $dir/lib*/ -l secp256k1 -Wl,-rp
    * finalizes the release notes in [CHANGELOG.md](../CHANGELOG.md) by
        * adding a section for the release (make sure that the version number is a link to a diff between the previous and new version),
        * removing the `[Unreleased]` section header, and
-       * including an entry for `### ABI Compatibility` if it doesn't exist that mentions the library soname of the release,
+       * including an entry for `### ABI Compatibility` if it doesn't exist,
    * sets `_PKG_VERSION_IS_RELEASE` to `true` in `configure.ac`, and
    * if this is not a patch release
        * updates `_PKG_VERSION_*` and `_LIB_VERSION_*`  in `configure.ac` and