message: Update readme toolchain
diff: @@ -83,7 +83,7 @@ The following is an example of a typical `pdflatex`>`bibtex`>`pdflatex`>`pdflate
  {
  "command": "pdflatex",
  "args": [
  - "--synctex",
  + "-synctex=1",
  "-interaction=nonstopmode",
  "-file-line-error",
  "%DOC%"
  @@ -96,7 +96,7 @@ The following is an example of a typical `pdflatex`>`bibtex`>`pdflatex`>`pdflate
  }, {
  "command": "pdflatex",
  "args": [
  - "--synctex",
  + "-synctex=1",
  "-interaction=nonstopmode",
  "-file-line-error",
  "%DOC%"
  @@ -104,7 +104,7 @@ The following is an example of a typical `pdflatex`>`bibtex`>`pdflatex`>`pdflate
  }, {
  "command": "pdflatex",
  "args": [
  - "--synctex",
  + "-synctex=1",
  "-interaction=nonstopmode",
  "-file-line-error",
  "%DOC%"
  