Improve symbol extractor readme

Author: tmolitor-stud-tu

tools/symbol_extractor/README.md

@@ -7,7 +7,7 @@ The symbol_extractor will automatically demangle C++ symbols, for demangling of
 from [www.swift.org] is needed. It can be downloaded as tarball (the Debian tarball can be found over here, for example:
 [https://www.swift.org/install/linux/debian/12/]). Just extract it to some directory.
 
-Note: Since only two files of the DSK are needed, you can copy `/usr/bin/swift-demangle` and `/usr/lib/swift/linux/libswiftCore.so`
+Note: Since only two files of the SDK are needed, you can copy `/usr/bin/swift-demangle` and `/usr/lib/swift/linux/libswiftCore.so`
 into the directory, your `symbol_extractor` binary resides in and delete the rest of the SDK to save disk space.
 
 ## Compilation
@@ -34,6 +34,9 @@ If the symbols database is present and symbols for the iOS version of the crash
 the Crash Analyzer will automatically resymbolicate all `<redacted>` symbols.
 It will inform you with a dialog box, if resymbolication wasn't possible for all `<redacted>` symbols.
 
+The release of the Crash Analyzer downloadable on the GitHub releases page comes with a prepackaged `symbols.db`
+containing symbols for some iOS versions.
+
 ## Symbolicator
 The `symbolicator.py` is a small script essentially doing the same as the Crash Analyzer.
 It can be used to do a stand-alone resymbolication of a `*.crash` file, if it is also presented with a `*.json` and `symbols.db` file.