diff --git a/README.rst b/README.rst
index 4c12de6..832529a 100644
--- a/README.rst
+++ b/README.rst
@@ -71,31 +71,31 @@ The grammar consists of a list of genotype or phenotype designations, separated
 spaces and/or commas. The designations are described using the following nomenclature:
 
 ============================================================= ==================================
- Designation                                                  Grammar expression
+Designation                                                   Grammar expression
 ============================================================= ==================================
- ``feature`` deleted                                          ``-feature``
- ``feature`` inserted                                         ``+feature``
- ``feature`` inserted at ``site``                             ``+site::feature``
- ``site`` replaced with ``feature``                           ``site>feature``
- ``site`` (multiple integration) replaced with ``feature``     ``site>>feature``
- ``feature`` of ``organism``                                   ``organism/feature``
- ``feature`` with variant                                      ``feature(variant)``
- ``feature`` with accession number                             ``feature#GB:123456``
- ``feature`` by accession number                              ``#GB:123456``
- fusion of ``feature1`` and ``feature2``                      ``feature1:feature2``
- insertion of two fused features                              ``+feature1:feature2``
- insertion of a list of features or fusions                    ``+{..insertables}``
- phenotype: wild-type                                         ``phene+`` or ``phene(wild-type)``
- phenotype: mutant                                            ``phene-`` or ``phene(mutant)``
- selection marker: used (wild-type)                           ``marker+``
- selection marker: available (mutant)                        ``marker-``
- a non-integrated plasmid                                     ``plasmid{}`` or ``plasmid{..insertables}``
- plasmid with selection marker                                ``plasmid{..insertables}::marker+``
- integrated plasmid vector with required insertion site       ``site>vector{..insertables}``
- nucleotide range of a ``feature``                            ``feature[startBase_endBase]``
- coding nucleotide range of a ``gene``                        ``gene[c.startBase_endBase]``
- protein amino-acid range of a ``gene``                       ``gene[p.startAA_endAA]``
- protein amino-acid of a ``gene``                             ``gene[p.AA]``
+``feature`` deleted                                           ``-feature``
+``feature`` inserted                                          ``+feature``
+``feature`` inserted at ``site``                              ``+site::feature``
+``site`` replaced with ``feature``                            ``site>feature``
+``site`` (multiple integration) replaced with ``feature``     ``site>>feature``
+``feature`` of ``organism``                                   ``organism/feature``
+``feature`` with variant                                      ``feature(variant)``
+``feature`` with accession number                             ``feature#GB:123456``
+``feature`` by accession number                               ``#GB:123456``
+fusion of ``feature1`` and ``feature2``                       ``feature1:feature2``
+insertion of two fused features                               ``+feature1:feature2``
+insertion of a list of features or fusions                    ``+{..insertables}``
+phenotype: wild-type                                          ``phene+`` or ``phene(wild-type)``
+phenotype: mutant                                             ``phene-`` or ``phene(mutant)``
+selection marker: used (wild-type)                            ``marker+``
+selection marker: available (mutant)                          ``marker-``
+a non-integrated plasmid                                      ``plasmid{}`` or ``plasmid{..insertables}``
+plasmid with selection marker                                 ``plasmid{..insertables}::marker+``
+integrated plasmid vector with required insertion site        ``site>vector{..insertables}``
+nucleotide range of a ``feature``                             ``feature[startBase_endBase]``
+coding nucleotide range of a ``gene``                         ``gene[c.startBase_endBase]``
+protein amino-acid range of a ``gene``                        ``gene[p.startAA_endAA]``
+protein amino-acid of a ``gene``                              ``gene[p.AA]``
 ============================================================= ==================================
 
 Development